Practical?! Have you ever tried loading heavy objects into a truck bed that's 4.5 feet off the ground? There's literally no utilitarian use for them at this point even in agricultural settings, much less the urban and suburban landscapes where they typically plague. What ever happened to the small truck? Much easier to load, much less of a road hazard/nuisance.

For me it's the increasingly large size of all trucks which have made them hugely inconvenient, and frankly dangerous, to circumnavigate. You know how you feel when you get boxed in by a couple tractor trailers on the freeway? That's how everyone else in reasonably sized vehicles feels driving around your truck. There are way more blind spots involving the modern truck compared to other cars which present a danger to everyone else on the road, I don't care what kind of whizz-bang "safety" cameras you have. And you also create blind spots for everyone else who can't see around your absurdly bloated truck in places like parking lots and passing lanes.

It's a safety and practicality issue which goes beyond the "you don't need that" mentality, there's legitimate reasons for people to NOT like them.