To me, all that dom/sub thing is part of BDSM. Very much not everyone is into BDSM. I'm not into anything like this either, it's alien to me. And that's okay. Like with all other kinks, the only thing that's important is that these expectations should match between partners (or if your partner is into it, they need to know that you are not and be fine with respecting that — I met people like this and we still enjoyed each other).