Fay_Wilmont Are you saying Google is asking you for a random phone number not previously associated with your account to confirm you are the rightful account owner? Just... how would that confirm anything?!
Yes, I've seen this as well with Microsoft. Can make a new account without phone number, then later it locks you out unless you give them (and confirm via SMS) any number. They don't even know if it's you or a hacker who's giving the number. It's quite obvious that they don't care about your account safety but only want to know who you are.