Eh, everyone’s different.
The need to appeal to adults feels a bit like the Toy Story 4-ification of media. Sure, you’ll get newcomers in a younger audience while speaking to the generation that grew up with a franchise (or in this case, hobby), but why? Just make it “family friendly” and don’t worry about the adult appeal.
I guess it’s different for everyone, but gaming and reading for me are about escapism. Retaining my sense of wonder and never growing up more than I need to. Mature humour for example can be cool if done subtly and sporadically, but not too much to beat you over the head with real life stress. There’s a reason you don’t do your taxes or refinance your home in video games.
Extreme example, of course. Just saying a game made for kids without relating to adults doesn’t bother me at all. To each their own though, mate.
