I have a social application that allows users to sign up with their social accounts. The problem is that when a user uses a social login button to sign up in my website, the only way to login next time is to use the same button. I mean the classic login section that asks username and password doesn't make sense for him/her anymore.
I know that users use social login buttons to avoid extra work but in my experience many users who signed up with their social accounts try to use classic user login section next time and after a few failed attempt, they realize that they signed up using a social login button.
The question is that should I force users to enter their missing credentials like password and username to be able to login using classic login section next time?