Why do I need to give my credit card info to sign up for a new Yahoo mail account?

I just tried to sign up for a second Yahoo email account, and after I went through the usual sign-up process, another screen came up saying I needed to provide valid credit card info and proof that I’m 18.
I’m definitely not comfortable providing that info to get a Yahoo account.
What’s going on?

what credit card company easily approves application?

pls help. i would like to apply for a credit card here in phils and im self employed but i dont have itr yet because i just had my business for 2 months and i dont have any bank statements. can anybody tell me what credit card company can i apply on line and can [...]

Instant credit cards that are actually instant?

Hi! I know I should have thought ahead, but here I am without a credit card and I need one as proof for a car rental. ^_^;
I see places online that can approve you instantly, but then you have to wait for it to be sent out, and by the time one got here I’d [...]