Everyone loves to make money, in gambling you can have a chance to earn if you win.
If your adrenaline while gamble or betting doesn't make you feel entertained, you can't enjoy gambling because you're really care about profit and loss in gambling. As we know the reality, most people will lose because house edge make the casino has a higher chance to win.
It's similar like spending money to go vacation, video games, holiday etc, if you don't feel fun, it's not for you.
In fact, usually in my opinion, people who gamble with the aim of winning are people who are not aiming for fun or entertainment, the point of their pleasure is in winning, whereas winning in gambling cannot be obtained easily.
Not only are they not having fun, they're subjecting themselves into all manners of pressure from trying so hard to catch a win and recovery in the times of serious loss. They hardly gamble in moderation since they see it as a money making scheme. This is the surest road to serious addiction, terrible fund loss and frustration in gambling.
Funny enough, only a very few of those in these quota are successful in their gambling activities, those successful still lose most of their lucky find back to gambling. Gambling for fun still remains the best approach to gambling.
Apart from that, gambling can be entertaining if they do it with the aim of having fun, in other words they will not mind the loss of the money they bet on.
In my opinion, gambling is not entertainment, entertainment involved comfort, relaxation and doing press of the fun thing. Everything about gambling is done by the person involved, the tension is real, the mind manipulation and strategy inclusions to get it right, even when you're gambling for fun.
All those stress aren't necessary in entertainment, when I'm entertained, I sit back and watch things that gladden my heart with zero pressure involved.