horse

I don’t know if it counts as a habit, because I don’t have a schedule or anything, but I ride my bike an average of 150km per week.

All you’ve said is that it’s fine because you can run Windows 10 on old hardware, but somehow being able to run a fully supported version of macOS isn’t good enough.

The point was that Windows is the same.

Apple supports current macOS plus the previous two. If he’s on one of those ( which it sounds like) everything will work just fine.