I think it might be that women with kids are often overwhelmed with looking after everyone, the idea of sitting and investing time in a console or computer game is just not part of what they feel they have time for. Mobile games are a bit easier to just put down when needed. That said I’m in my 40s, no kids and gaming all my life. I tend to play single player, replaying BotW at the moment and trying to 100% it. I have a lot of other women friends who play as well, but they do all tend to not be moms.