Soldato
The only pre 1978 cars still being nursed along are going to be classics or proper fanboy type oldboy owners.
So? Do all of those owners have ramps to get under their cars every year to check the suspension, corrosion etc? Do they have a rolling road to check the efficiency of the brakes?
Cars that are driven less frequently are just as much in need of regular and thorough checks as cars that are used more often. So much of the time it's not using cars that leads to problems.