You're not wrong really, it's just a luxury most people aren't familiar with. My mom would always only go to the 1 or 2 stations in our town that advertised "Full Service" now it's not even a thing at all anywhere around here. At one we even had an account so didn't even have to bother with paying. The attendant would put air in the tires, check oil, top up fluids and if you wanted go grab you a snack. Last one went away around early 2000s.