Question from non Muslim

So im not a Muslim and ive never been one but many times I see posts here of people complaining about things like, they had to pray or they had to read. And I'm wondering why would you leave a relegion simply because of these things, it seems stupid in my opinion as praying and reading the holy book seems obvious and necessary for understanding. This was just a question and I would be glad if anyone could answer, I myself do oppose Islam and think that its evil in some aspects. Thank you in advance !