Define “need”. I only use my snow shovel like 3 days a year. Does that mean I don’t need a snow shovel? I only camp in my camper one month a year, but I can’t move that thing with anything other than a pickup. I don’t “need” my truck for that. I operate several food trailers. I can’t tow most of them even with my 2500 reefer van, but I could go back into software.
The better question might be how often does one utilize the unique shape and capability of a pickup.
Also, define heavy. Half ton and below, sure, those are just differently-shaped SUVs to most people who own them. 3/4 ton and up are work trucks. But every truck owner finds themselves moving things you can’t move in an SUV on occasion.
I was talking about the heave ones. Past a certain weight there is a special tax preference. For example, every Mercedes dealer (it seems) has an explanation on their website pitching their G series SUV. People buy they and claim they are primarily for business, but there is very little enforcement or verification.
Right tool for the job. I drive an AWD Prius with winter tires to get groceries in the snow.
Everyone with a truck had to put a bunch of weight in the back to manage the roads in the winter.