I feel the same way. I have a VW Atlas. It’s big but I often take advantage of its size including road trips with 4 adults, two kids in car seats, and luggage. I think I use the volume of it enough to justify a large vehicle versus renting one when needed. Unfortunately I can’t afford To also have a small car for the times I don’t need the volume. I definitely feel a little guilty when there are only 2 people in it.