Glad you can just decide to do those things, do them and stick to doing them! Well done.
Because just doing pushups is not enough and even those can de done badly. Because cooking yourself is a completely different experience from going out to eat, part of the experience is precisely _not having to cook and clean_. Because some people can't help themselves and could end up in really bad places, because for some people spending time doing taxes could be very well used otherwise...
This is a book about why you do not really need all this stuff that commercial capitalism is trying to sell to you. It has inspired me years ago.
https://en.wikipedia.org/wiki/Alexander,_Count_of_Sch%C3%B6n...
https://www.rowohlt.de/fm/592/sample%20translationSchoenburg...
https://www.amazon.de/Die-Kunst-stilvollen-Verarmens-reich/d...
I got myself fit as I was able to plan for a healthier lifestyle and see it through. Not all folks can.
I wasn't able to get myself mentally healthy however, and without paying for mental health support I would never have had the mental stability to get myself physically healthy.
If you find life easy, good for you, but assuming everyone skips through life as easily as you is arrogant at best.
Headspace is great. Is it as good as heading to a monastery and studying for years? No.
Could you get the same experience without guidance? Sure, but most people haven't got the will power to stick to it. That's not a weakness. That's just human.
Why not just do pushups, walk the stairs or just go running, cook for yourself and your friends, know yourself instead of paying for therapy. Even doing taxes yourself isn't such a burden.