Would protesting wearing a uniform for school fall under free speech?

This is up to your school and school district policy. You need to ask them, not us.

It is not for my school....it is for an assignment. Thank you!

under free speech...

Usually not. In schools for kids under 18, schools have a legal "loco Parentis" authority, and they can prescribe much in the behaviour of kids to enhance education, if it serves a reasonable end purpose. This often incudes hair styles and colors.
For private schools, and colleges, students have to agree to abide by clothing regulations when they register.
So free speech (and expression) usually do not apply.

Okay thank you!

Determining whether or not protesting wearing a uniform for school falls under free speech depends on the specific laws and regulations in your country or jurisdiction. Free speech rights can vary widely, so it is important to consider the legal context you are in.

To get an accurate answer, you should research your local laws and regulations regarding freedom of speech and school policies. Here are some steps you can take to gather information:

1. Consult your school's policies: Start by reviewing your school's dress code policy. Look for any provisions related to student expression, freedom of speech, or protest. Understanding the guidelines set by your school will help you assess the potential impact of a uniform protest.

2. Research local laws and regulations: Familiarize yourself with the laws and regulations governing freedom of speech in your country or jurisdiction. Laws may vary, allowing different levels of speech protection for students within educational settings.

3. Examine legal precedents: Look for any relevant court cases or legal precedents that have addressed similar situations in your jurisdiction. Legal decisions and interpretations can help you understand how courts have ruled on issues related to student expression in the past.

4. Seek legal advice if necessary: If you are unsure about the legal implications or have specific concerns, consulting with a legal professional or an advocate specializing in education law can provide you with expert advice tailored to your situation.

Remember, the information provided here is general guidance and not a substitute for professional legal advice. Laws and regulations can differ significantly based on your location, so it is important to seek accurate information specific to your jurisdiction.