Do you think the login field is necessary?

Question

User identification

Hello!
I'm doing registration on the site, and I thought about something, do I need a login field, or is email and password enough, instead of login, password and email? I make the site for my needs, there are no specific requirements, you can do it this way and that way.

Answer 1

if you do not need a login anywhere, but then you need it. For authorization, you just need some unique identifier associated with the user.