We started out with a 26' Class C. We don't have human kids any more but we do have canine ones (2 big Labradors!) The "C" got old really quickly. It had an odd layout that we didn't recognize when we bought it and it was really difficult to live with/in.
We sold it in the second half of our first season and, after waiting a bit, we bought a used 32' Class A Georgetown. We enjoyed that one much better and did 4 seasons with it before realising we were digging into our IRA savings to fund the lifestyle. We're now retired RVers.
It's surprising how quickly you get used to driving these things if you're typical height. Unfortunately, DW never did, as she couldn't reach the pedals, and even if the seat fore/aft adjustment had allowed it, the steering column wasn't telescopic, so the wheel rim would have been behind her! The seat didn't have vertical adjustment either, but if it had gone low enough, I don't think she'd have been high enough to see out the windshield. I wish the RV industry would take lessons from the transit coach manufacturers. I drove transit for a few years and found adjustabiity was fine.
I'm 5' 8", so I had no problems, but DW is less than 5' (and won't let me say how much!). Unfortunately, I get backside cramps after about 3 hours driving, needing at least a 20-minute walk-around before getting back behind the wheel. It tends to reduce the miles you can cover in a day (about 250 max for me).
My recommendation would be to go for a 32' to 35' Class A. If you aren't sight-seeing all the time, but at the same CG for each summer, an on-site car that you can leave behind somewhere during the time you're "back home" might be an option.