Login Change Request

I would really like to be able to login apart from my google account with a normal username and password. I understand that it’s not possible to change right now but is it in the foreseeable future?

I really don’t understand why there is a big push to link accounts today? Personally I don’t think it’s a good idea, just saying.

I have the same concern, esp. since it does not have a yahoo.com option. It also becomes confusing when using multiple mobile app accounts.