If you can change your club, then you are not a fan of your club from beginning. Been a loyal fan of a football club is a forever loyalty. Music is not football and football is not music, they don't come close because music may get tiring but your favorite club has some more surprises you may least expected, I will not trade my club for anything.
I disagree with this because even players do not stay in one club forever, they change clubs, and some of these players care more about their clubs than we fans do, but if they notice the club is tired of them or they are tired of the team, they switch to the club where they will be happy. Does this mean they are not loyal to their clubs? So in my perspective, fans can also make the same decision, and fans have varied reasons for supporting a team. I supported Barcelona because of their football pattern then, and when I discovered the pattern wasn't there anymore, I switched to Manchester City because their playing pattern is actually the same with Barcelona, and I didn't regret choosing Manchester city.
Messi played for Barcelona from a young age, and he is no longer there, so why do you fans have to force yourselves to support one team out of fear of your friends that will make fun of you?