I moved away from Google services years ago, but nowadays you can't even browse Youtube without asking for age verification, I'm not going to send my ID card or

I moved away from Google services years ago, but nowadays you can't even browse Youtube without asking for age verification, I'm not going to send my ID card or credit card data to Google to prove that my 15+ years old account was not created at that time by someone who was 2 years old and is still not adult in Europe, do these people even use brain to require age verfication from 15+ years old account? Oldest e-mail I've found in my Gmail is from 2007 from Rapidshare, but created it already way before, but there is no way to find account creation time (POP/IMAP trick doesn't work, shows 2008). Any idea how to find how old is Gmail account and why they ask for age verification for 15+ yo accounts?