I mean, even the concept that Mario is an Italian plumber feels weird, but it has to do with the series' origins, and it kinda moved from it anyway. Mushrooms on the other hand are very prominent in the series, from characters like the Toads or the Goombas, to the power ups or locations. It just feels weird that Mario, a family friendly series, has made mushrooms part of its identity, especially considering mushrooms aren't something people think of just as a food.