You can give a ball to a child and it will be just a child fooling around with that ball. You give a ball to David Beckam or Zidane and make it the most watched game/sport on the planet with serious technics and hard work. Both of these people will have a ton a fun.
I take Airsoft seriously as a milsim player and drills are part of the game to improve my team skills like soccer players work on their technic to win a game.
It's just a different mentality. You will have casual sportive people and serious sportive people.
I have been like this in all the sports I do and I did, and I love it.
If you find them too serious, you didn't pick the right game or the right team for you...
We will find a way.