Self-Rejection, Self-Sacrifice, Self-Denial VS Egoism, Earthly Pleasures, Hedonism

[Sheldon]

I wonder if you live among especially strict people...?

Most people I know would probably say that if you're not a burden to others and you're not hurting anyone (as you say in your signature) there is leeway in one's spare time. 

So for example if you work five days a week at honest work, will people really tell you not to spend your weekends painting pictures, or practicing the piano?

Have you ever been at certain workplaces that ask you to do overtime work outside of work hours on work nights, or during weekends? Whether it’s paid or unpaid, it’s still stealing time that could’ve been used for leisure.

I don't think stealing means what you think it does, and if I am asked ( and very often am) to work overtime, unsocial or otherwise, then it is at a premium rate to compensate, and if I don't want to, as has been the case on occasions, then I say no. If an employer ever tried to force me, I'd quit and go work somewhere else, I wouldn't bitch about it online. 

That aside, don’t you have family members or colleagues or whoever who might try to, for example, make you do something you don’t enjoy just for their benefit? Well they’re entitled to do what they want, but instead of doing it themselves they can try to make you join. Like proselytizing religious family members that demand I still join their weekly worship, worse if they sit near me to make sure I can’t distract myself. If they really enjoy the benefits of religion they could’ve went by themselves without dragging anyone else into it, but some individuals are too unlucky to be born into families like this. What a way to steal someone else’s free time!

A false equivalence there, some of my family and the odd friend are theists, they'd get a proper belly laugh if they tried to proselytise me, I suspect they know this as well. Maybe you should take responsibility for your own life, and stop expecting others, and or society to make you happy or content.