How do I obtain an ID card in the State of Texas without my mother present?

Honestly, an expired Driver's license will serve her as well as an up-to-date ID. I assume she won't be getting on airplanes, registering to vote or cashing checks, so I wouldn't worry about it.

So depending on her age - I'm wondering if this is even necessary? I mean you would know better than I would if there are things she would need a current picture ID for. But a while back I posted here wondering if an ID was necessary because my FIL's license was expiring and the idea of the DMV with a nearly immobile 300lb man was daunting to say the least. And we were advised that to change his license to a State ID - because it was a type change - we had to bring him in - instead of making the switch online.

At that time others advised that beyond a certain age most places that needed any form of ID were typically content with an expired license and a credit card as a second form of ID. (places like doctor's offices etc). Unless there is something that she is going to be doing that will require a true valid id (like flying for instance, or needing to show proof of ID at the bank, are you sure it is even really necessary to get even the state ID or would her expired license work?

When I took my daddy, I made an appointment and went in the disability line, no waiting. In and out no time. It took longer to take a picture than to stand in line. Check with DMV.

You could inquire at your local DMV if they would issue her a handicapped sticker with a doctor's note. In SC they had me take a picture of my mother on my phone and they issued a sticker to be used when she was in the car. I believe I showed them her expired license from NY. States have different regulations for these stickers. In NY the sticker is issued to the car but here in SC it is issued to the individual.

When you call the DMV, make sure they know you're making an appointment for a disabled person. That might speed up the process a bit. You can make an appointment online if you prefer.

I don't know of any government entity who will give such an important document (ID) without the presence of the person (even if there is POA). All cases I know, if the person is immobile, then an official can be asked to go to the home, to the person, to start the process of getting an ID. I believe the official MUST see the person physically face to face (video call is not enough).

Instead of asking the forum, it's much better to ask DMV what to do. DMV is such a hassle to get on the phone. Just go physically to a DMV office and ask.