Got 2 for my kids. Spent a good chunk of time setting the chromebooks up and creating gmail accounts before christmas. Christmas morning comes, kids open these, try to get in... family pin, kid pin, captcha, kid password, parent password and then the phone 2fa... works for one but for the 2nd one the phone # is rejected because "too many verifications"... google says try another #, are you kidding? Ever hear of a single parent?  Call the ex and that # gets rejected too. Get with support and all they can do is log a ticket and maybe get back in 24 hours...Thank you google for an absolutely terrible experience on christmas.  Should have stuck with windows instead of google's half baked security.