Yeah agreed, a lot of them have few options in how they can do be a "pro gamer". A lot of SF5 and T8 pros absolutely hated playing their games but they don't have any other options, especially for fighting games.
There has to be more going on though. It doesn't make sense why Mutsu never tried brainwashing Mirai like how Yoshie. Why would she only educate Nana but not Mirai when we know from Yoshie that it's common for the womb-sama to be "educated" as well. It's likely that Mutus had second thoughts...