Google won't let me sign in without verification with phone number.

I don't have any Google app in my phone, except Translator. Mainly I watch Youtube and check mails in Safari. Once in a while, I clear all the website data and cookies. Yesterday I did that and when I tried to sign in to Google, it said input your mobile number for verification. Note that I don't have my number in my Google info. I found that very strange. so I gave my number for verification and when I signed …

google phone phone number privacy sign verification