The majority of them are not doing it to improve performance. Same with the low profile tires with huge rims. You want smaller rims and more sidewall for off roading. These mods when implemented like this are “look at me”, “I’m bigger”, and “I’m more important” statements. I’d bet most of these owners would freak out if they scratched their paint on a tree or got dirt in the bed.
Its because the modern family needs 5 cars. 1 per parent, 1 per child once old enough and a back up car. Or the developer was forced to meet some ridiculous parking minimum based on bogus statistics.