Look, it's simple, I don't like the games. I tried some of that sort and I can definitely say that I haven't got a pleasure at all to play those (I got rid of them). I would not see myself playing games which involve violence or mature things in any way anymore. I respect everyone which plays them, but I'm just not the kind of person to be put on it, and being told that I do wrong choices is just wrong to do. It's my choice to be and I think you need to respect that I don't like those kind of games and that those disgust me and put me embarassed at the moment I'm looking at the screen or hear about that sort of language. In addition to that, I prefer "childish-like" environnement when I play video games. It is an important point to me when the characters, story (if there's one) and all those details on the games I play are intriguing. I prefer to feel like a kid more than an adult, in all honestly.
Also, I say 10+ because that's usually a rating where the game content is actually acceptable to me, because after that, with the exception of Star Fox & Smash Bros series (Which is personally the top I would go and that I'm 'alright' with), some details in the game might disturb me like I already experienced, and it was not good to see. Also, it's my money, and my time, my profiles and all, so I think I can buy, play, and put what I want. And, I'd rather play the same game over and over rather than always buying a new one.
And in the end, think about it. Think about why I'm around this forum already... It's because of a game series I'm appreciating a lot, my favorite sort of Mario game, hands down. And that's why I appreciate seeing all the work around, to take us, Mario fans, as an important fanbase and to us, to enjoy talking about what we like and want to hear about. I would probably not be here if it wasn't a little about Mario Party to begin with. There's differences with people and I think it's something you all need to accept, so that's indeed something to take into huge consideration.
This is my final answer, I think I touch at all the aspects now and I'll stop telling things in a place 'out of place'.