Ugh, ok.
Most people do not need one.
I'm not sure what the need is for a very tall pickup truck that can also hold a family five? But maybe there is one. Perhaps there is also a need for an excavator that holds a family of five, idk. If a real need is demonstrated, then sure, please do not ban the manufacturing of an excavator that has the necessary hook-ups for modern child carseats simply because I, a commenter on HackerNews, made a statement that was a little too sweeping for the needs of past, present, and future human beings on Earth and across potential settlement across the universe and dimensions beyond.
But most people do not need a very large truck or SUV. Vehicles with hoods closer to the ground and better lines-of-sight are safer for those around them, while having practically no impact on the utility of said vehicles as they drive on roads and highways in the USA.