There's a difference between want and need. But your point is very well taken.In some cases needs must. My wife has disabled needs that require a taller car. I had to trade my old car (BMW 335i) for a taller car. I'd love my old car back but my needs outweigh my desires. Also it had to be a goldilocks height - not too high / not too low.
Disabled people and older people have needs that frequently saloons (sedans) or hatchbacks can't meet. In the UK about 20-25% of the population have some disability and maybe 25% are over 60. You can see why SUVs are popular. Plus, over here our roads are in really bad shape.
Before my dad's brain haemorrhage, he was going downhill quickly. He had great difficulty getting in anything other than a full-size sedan, which was even difficult then. We tried him with an SUV and minivan and he couldn't do the SUV. He could only do the front seat of the minivan as there was too much of a gap between the door and seat in the back seats of the minivan. Even in his normal days he had the strangest way of trying to get in and out of cars.