> every single online account you have uses email address
No, not every single one. This is provably false.
I can prove it right on this very website, where we all have usernames, rather than email addresses. Going over my password manager, while the majority of records has an email address for a credential, a fair share of records has usernames instead.
No, not every single one. This is provably false.
I can prove it right on this very website, where we all have usernames, rather than email addresses. Going over my password manager, while the majority of records has an email address for a credential, a fair share of records has usernames instead.