You have a narrow view of things sport as many folks and RVers are elderly and/or have health issues such as heart disease, cancer, diabetes, Arthritis, and cannot handle a heavy tire and rim or crawl under the rear of a truck for the spare on hot road service or in winter severe weather conditions, and on and on. Some are even in wheel chairs believe or not. Surprise surprise.
Did I say Arthritis and many folks develop it at a young age. But I am sure you are aware 0f this now sport. Your education is complete. Also excuses for poor tow truck and road side service contracts are a cheap cop out macho ones.