Exactly so. How dare you be different? People don't like people who are different from them. There's actually a word in English for this concept: "tribalism".

I've read before that how people react to you is seldom about you; it's much more often a reflection of who they are than a reflection of who you are. I think that that's true, sometimes, especially in cases where you have no idea why they got upset. It's not always so; sometimes the person who is different is really just being a jerk. That's the exception, though, not the rule.

By the way, I find it boring fulfilling some rules dogmatically over a longer time period that are none of my mind and which I have inner reason for following.

So do I. It's boring and it's simply mind-numbing, because the only way to do it is to stop thinking.