I drive a large vehicle for many reasons, #1 being comfort. I am a tall, large person. I want a vehicle with lots of leg room, and a ride height that does not require me to climb down into the vehicle. SUV's and Pickup trucks fit that bill. Cars do not.
If you're Andrei the Giant, for sure. But if you're just 6 foot and change and under 300 lbs, virtually any modern sedan has plenty of room and isn't hard to get into.
For me they are much more uncomfortable to get in and out of. Once you are inside sure, but compared to a SUV or Truck that have a ride height that places the seat almost exactly parallel to my standing height, making getting into them like sitting into an office chair Vs the standard car that is a good foot or more lower than that making it awkward to get in and out of