When first giving my 4yo burgers the second or third time I forgot to season the patty when cooking. After one bite he said, "That's not food" and wouldn't eat anymore.
Dopey middle class people who don’t know how to cook buy 95% lean ground beef or turkey, because fat and it costs more. Latchkey kids like me didn’t learn to cook unless we cooked it up ourselves. Dinner was a product.
If you use an appropriate cut of meat (like ground chuck), you don’t really need to salt as the meat has flavor. Salt will bring out more flavor, but you don’t need a lot.