i am totally agree with you. i am started gambling as a fun purposes like as my first deposit was 10$ in 3 years before.
btw interesting thing i made it 80$ by gradually,
after that i am too attracted and i take it seriously,
then i never feel gambling can be just for fun to me, bcoz here you need to spend money from ur own pocket, bcoz if i lose then it’s will affect to me.
Soon you will realize that it's no longer fun if you are losing decent amount of money because of your gambling activities, I feel you with that same experienced, if you are new to gambling and you experienced that feeling of winning, you will think that you can simply repeat that outcome and before you realized you already lose a lot of money.
I think my version of gambling for fun is like playing with my friends, so if you lose it doesn't matter not because I have a lot of money but again I'm not a big gambler, usually I only bet small bets and it takes a long time to play in casinos like dice rolls, sometimes I play dice rolls with small bets just to have fun accompanying me while watching football and also betting on football
Good money control, something that it not usual with heavy gamer, though with casual gambler, they find enjoyment because they are well aware that too much gambling will harm their finances, they can quit the moment they feel that it's already enough for them.