Samsung and Google flagships took my headphone jack away. And after 2 years android phones start to have issues with bugs.

Samsung s9+ was my last android… Had been android my whole life. Traded it for a iPhone 12 pro. Just upgraded to iPhone 15 pro max… never see myself going back to android.

Bitwarden offers the ability to use as a authenticator as well as manage your passwords. Only costs $10 a year

Doesn’t the old pin remain active for 72hrs now?

Just go and buy your son a new sim… get a new phone number. It’ll be a bit of a hassle changing everything but it will instantly solve the problem. Pretty sure most carriers even let you change your phone number without changing the sim too.