do I need to make an appointment for the written test for my daughter 15 1/2 years old?

Faster with an appointment. But not necessary. If you walk in, you'll be out in about 45 min.-1hr.

Well having an appointment sure! Is way faster but if you need to go urgently it wasn't too bad at all been there a couple of times, out 20-30 min DMV wasn't used to be long line .

No, you don't have. You can walk in with no appointment. Having an appointment is faster though

Yes