I was thinking the same thing. If running a medium speed diesel on a genset for 8months straight or more maybe a test would tell us something but for hobby vehicles, I am not so sure. Or maybe on a million mile commercial truck so someone in an office can decide if it needs to be taken off the road for a new engine.
Most vintage cars have an oil pressure gauge for use as a general condition monitor. Compression tester can also give indications. Car and bike engines are small so if the engine is on the bench for an overhaul it is just as easy to change bearing and rings etc, while it is there.
But as you say it is for a hobby so no harm to be done. Just treat is as part of the hobby.