I completely agree that doing something enjoyable is absolutely the best approach, and if you want to optimise for various things, that's great - but don't knock the millions of folk who are getting off their arses and actually moving about. (It also makes me happier to think of people out there enjoying exercise, than "putting in their time" on the treadmill like hamsters.)

Sadly, finding a form of exercise that fits is easier said than done, as with so many things.

If you are unfit, there are many barriers - both physical and mental - to just trying out new sports until you find the right one. Even less unfit people can be paralysed with fear of the unknown, over-abundance of choice, etc.

College and workplace activity offerings are great, as are good gyms, because you can just try out a bunch of classes once and see what works for you. But it took me many years to get to the point where I was brave enough to walk in the door of a Crossfit gym, which I now thoroughly enjoy.

Maybe the point here is that if you have friends or acquaintances that "don't like exercise", bring them along to something you love or have always wanted to try (ideally the latter - doing someone's favourite sport with them is way intimidating if you're new to exercise, failing together is much more enjoyable).