Mothers are a poor example in this context though. My mother was probably the same but entirely because she had three boys and it’s was a process of osmosis. Three sons who never shut the fuck up about it forced her too know way too much about something. She had zero interest in.
As a fella being good at, and following, sport is so tied up into traditional and expected ideas of gender norms and masculinity in an almost at times toxic way. Being shit at it, or worse not even liking it, can leave you vulnerable to shit at a formative age and would probably turn you off it to the point that you’d almost actively avoid knowing about it. Equally that’s fine, it’s entertainment, knowing or not knowing of it isn’t important in the slightest. This woman isn’t Taylor Swift or Madonna or the likes of Messi Ronaldo, Maradonna or Backham.