I am asked for a phone number most times that I actually log into mail (which isn't all that often since I just sleep the computer). Youtube is a travesty, thou

I am asked for a phone number most times that I actually log into mail (which isn't all that often since I just sleep the computer). Youtube is a travesty, though. After the recent upgrade, it did ask twice to turn on Talk for SMS messaging. I said no both times and it hasn't asked me since.