Yes you are mate, we must gamble for fun only and not have the mindset that we can earn daily a big amount of money because in the world of gambling we can not predict the outcome of our every bet. Sometimes we will win and sometimes we will loss. So it's better to aim happiness than profit. Here in in my country some gambler loss big amount of money because they are aiming profit. Once they put a bet they will mind that they will win and if they loss then they will double or triple their bet.
Those who gamble daily are addicts and don't gamble for fun. You will find them more than those you are talking about. Gambling is entertainment but when it becomes addiction the gambler himself won't be able to recognise this issue. Everyone starts for fun, adrenaline rush, excitement and passing time then when they start losing they become agitated and want to get the money that they lost. This is where the problem starts. If anyone is able to cope with that problem then they become social gamblers. That is what everyone needs to do.
You make good sense on your comment, but permit me to disagree with you on this particular statement you made saying that "every one starts out gambling for fun", if I must be honest with you this day, i personally did not start gambling solely because I wanted to have fun or anything related, I decide to play my first gambling, which was actually a local lotto, after I saw a winning lotto ticket of one of my casual friends..
I was in need of money at the times and needed a way to make that money fast, after seeing that friend of mine wining ticket , I was super hungry for money and thought maybe I could end up as a lucky guy the same way my friend was..
So long story short, what drove me into gambling was the need for money, it was along the line that I started learning and believing that indeed , gambling is just an avenue to have fun, not necessarily an avenue to become rich overnight.