https://en.wikipedia.org/wiki/Identity_document#United_State...
Drivers licenses and equivalent ID are at the state level although there's now a fairly high level of standardization (if you get a REAL ID version--required for federal purposes like flying).
So basically government-issued photo ID is fairly readily available but it's (often) not free and can get tricky in cases where, for example, you don't have a permanent address. And, unless you have an existing chain of ID documents, you need your birth certificate at some point.)
A student id from a university might have a passport sized photo stapled to it.
It has national ID standards for drivers licenses, but as far as I know it doesn't issue any kind of national-level ID document besides passports (and passport cards), and you can only get those as a citizen.
No. I kinda lost sight of the context.
Also, IIRC, passports are one of the harder and more expensive forms of ID to get.
This is straightforward when you have a national ID scheme.