What Changes Legally at Age 18

Turning 18 brings more than independence; it creates a full legal separation between parent and child. From that point forward, young adults are solely responsible for decisions involving healthcare, finances, and school records. Even if parents are still providing financial support or insurance coverage, they no longer have automatic access or authority.

This often comes as a surprise. Hospitals, banks, and universities must follow strict privacy laws, which means they cannot share information or accept direction without proper documentation. Without preparation, families may face delays or even need court involvement during emergencies.

At The Wills & Trusts Firm, LLP, we often help families address these issues early with clear, flat-fee guidance.

Health Care Proxy: Choosing a Medical Decision-Maker

A health care proxy, sometimes called a medical power of attorney, allows a young adult to name someone they trust to make medical decisions if they cannot communicate. This is typically a parent or older sibling, but it can be any trusted individual.

Unexpected situations, such as accidents or sudden illness, can happen at any age. Without a health care proxy, doctors may be required to follow internal protocols rather than a parent’s wishes. In some cases, families may even need court approval before decisions can be made.

By working with a will preparation lawyer or estate attorney, young adults can ensure their preferences are respected and their chosen advocate can act immediately.

HIPAA Authorization: Access to Medical Information

Privacy laws under HIPAA prevent medical providers from sharing health information once a person turns 18. A HIPAA authorization form gives permission for designated individuals to receive updates and access records.

This includes the ability to speak with doctors, review test results, and confirm treatment details. Without this document, even basic information may be withheld during emergencies.

A wills and trusts lawyer can include this authorization as part of a broader estate plan, ensuring families are not left in the dark when it matters most. At The Wills & Trusts Firm, LLP, we typically include a HIPAA Authorization in both the Health Care Proxy and the Power of Attorney.

Living Will: Documenting Care Preferences

A living will outlines instructions for end-of-life medical care. While it may feel early to discuss these decisions, having guidance in place removes uncertainty during critical moments.

This document typically covers life-sustaining treatments (or death-prolonging, as the case may be...) are acceptable or should be refused. Think external ventilators, resuscitation,  hydration, and feeding tubes. It may also include organ donation preferences.

Although rarely needed at a young age, a living will prevents loved ones from having to make difficult decisions without guidance. Many families turn to a local attorney that New York residents trust to ensure these directives are clearly written and legally enforceable.

Durable Financial Power of Attorney

A durable financial power of attorney allows someone to manage financial matters if a young adult becomes incapacitated or unavailable. The “durable” aspect ensures the authority remains in effect even during incapacity.

Responsibilities may include:

• Handling rent or bill payments
• Managing bank or credit accounts
• Coordinating insurance matters
• Addressing tuition or student loans
• Communicating with landlords or service providers

Without this document, families may need to go through guardianship or conservatorship proceedings, which can be both expensive and time-consuming. An attorney can help establish this protection efficiently.

 

Digital Asset Authorization

Much of a young adult’s life exists online, from banking apps to social media accounts. A digital asset authorization allows a trusted person to access or manage these accounts if necessary.

This may involve retrieving important files, closing accounts, or protecting financial assets stored digitally. Without authorization, accessing these accounts can be difficult or impossible.

Why Early Estate Planning Matters

Many people assume estate planning is only necessary later in life. In reality, these documents are about preparation, not prediction. They allow young adults to stay in control while avoiding unnecessary legal complications.

Working with an estate planning attorney clients trust also helps answer common questions like: "what happens if I die without a will?" (the answer varies in NY and CT!) or "how can I get a will?" and "how much does planning cost?" These are important considerations even for young adults with limited assets.

 

Getting Started with the Right Legal Support

Establishing these documents does not need to be complicated or expensive. At The Wills & Trusts Firm, LLP, we focus exclusively on wills, trusts, and estates, offering straightforward guidance with transparent pricing. Many clients appreciate why flat fee estate planning makes sense: it removes uncertainty and keeps the process accessible.

 

If your child is stepping into adulthood, now is the time to act. With the support of a knowledgeable wills attorney or estate planning attorney, you can put the right protections in place and ensure your family is prepared for whatever comes next.