People will tell you there is a lot of physical strength involved in motor racing
Jockey’s need a lot of strength too. I can imagine some of it is very grueling as well, even moderate effort can become really rough if you have to do it over and over for hours. But little people can be really tough and muscular. Maybe it’s a cost/equipment thing. Save money if all your drivers can use the same safety rigs and controls.
Freegards