Patrick,
First off, congrats on the STA program, enjoy your time going to school, and all the free time you have to spend with your family. I would go back to the easy days of ECP in a heart beat! LOL jk, it is NOT that bad on my first tour!
Anyways, I think that bringing a family with you to flight school is a must. You are never going to be too busy not to be able to spend time with your family. And their absence is just going to add stress to your otherwise overloaded plate. Plus, if anything, spending time with my family and kids during flight school was a definite stress reliever!
As for 9-5 job, well.... That is true, and not so true. During API, you will have the 9-5 aspects, and on many days you will get off early right after lunch, just depends on the schedule, and what is going on. A vast majority of API is just spent in the classroom going over the basic courses (Aero, Metro, Engines, Nav, etc...). Same is true during the beginning of Primary, when you are in Ground School going over the T34 systems. After that, you check into your Squadron, and the training begins. If I wasn't flying or briefing, I was at home. The time is yours to spend as you see fit. Going down to the beach, golfing, whatever. BUT, the Navy gives you enough rope with which to hang yourself, so, if you aren't studying, it will become painfully evident very soon.
We have touched on studying during previous posts, but the main thing is to set up some sort of program that works best for you. I personally studied by myself to get the material down, then studied with other SNAs to make sure I wasn't missing anything. I kept studying to only Sunday through Thursday, and reserved the weekend for the family. Whatever works for you. Plus, your wife can be an excellent study partner. I still give my wife limits and eps to quiz me on. She just randomly picks them, and I read them back from memory. Funny, we all joke that our wives/girlfriends know the systems almost as much as we do! lol
Oh well, my two cents, but I think you definitely need your family there.