I hear this comment every time this topic comes up, and quite honestly, it is BS. If you're in the minority of people who are spending every waking hour productively, maybe this is true. But for the majority, it certainly isn't. I know plenty of people who spend >10-20 hours every week on:
- Watching TV
- Surfing the web
- Playing games
- Watching sports
- Going camping/hiking etc
- Weekend trips
- Fishing
- etc etc etc
When someone suggests hiking, reading and meditation as a good way to spend your free time, everyone nods along and talks about how wonderful it is. But when someone talks about building a side-project, suddenly everyone has twin babies and elderly parents with dementia who are taking up every waking minute.
There's nothing wrong with any of the other alternatives listed above. If you're burnt out from coding, go ahead and do whatever gives you happiness and satisfaction. But please acknowledge that building side-projects is eminently realistic, and for some people, will give far more happiness and satisfaction than binging netflix.