I think half the problem with lets say people 35 plus is that when we were younger and got our first bikes and cars the quality of engines was absolute shite compared to today.
They needed a 1000 miles to run in because they were poorly cast and made to very poor tolerences , and if you remember most engines were lucky to see 100000 miles before they went bang , i lost count of the old minis and crappy motors i blew up in the eighties were as nowdays 3-500000 is no problem.
Tolerences and oil quality are now almost so good that engine internals bairly touch even when new so anything i run in these days i just let it do what it wants , you can feel how fast the engine wants to go so just let it go
