I have a question about making a T.O.S (Term of Service)

[yarbro.livejournal.com]

Please let me know if this is off topic, but I need advice.

So, I am writing my Term of Service. One of the policy is the client must be 18 years or older in order do a commission (Both for adult and non adult theme). I really want to protect myself and client from legal issues. I am considering asking proof of ID, such like a driver license before I can accept thier commission.

My question, is asking proof of ID reasonable? Or will that be a privacy issue? Or am I breaking a fedral or state law that I may not be aware of?

Thanks!

-Yarbro