Another interesting question is this, as a father would you force it on your child to also fan the same club you're a fan to, or you will allow him be himself to fan any club of his choice even if it's your most rival club of all times.
I would like to say that I would provide the right conditions for my child to choose a team of his/her own free will, but to be honest I would like to influence him/her to support my team.😅 My father did everything to make me support his team. When I was a child he bought me his team's jersey and took me to his team's games, but when I became a teenager I supported another team and I still support the same team today. I think parents' insistence on this does not always give the results they want. I think people like me are in the majority.