Gambling have thought me a lot of lessons and from those lessons I have build long term experience and one of the things I most not do is to gamble when I am not in the right frame of mind, because when you are under any form of pressure, you can easily get carried away into believing that you may possibly make off some money from gambling by risking more that you can afford, this is what have lead many gamblers into bad situations such as addictions and debts on the long run.
Gambling should be based on fun and nothing more because regardless of how much desire we have, if that day is not our lucky day, you will still lose, which is why we advice that gamble with only an amount that you can afford to lose and be comfortable with.
Your point of view is absolutely correct, as a gambler it is better to gamble when you are in good mood and not bothered about other things, gambling shouldn't be done with anxiety or even over excitement in other not to incur unexpected loss.
As you said, gambling should done without greed, it is advisable to gamble with what you can let go if you eventually become unlucky, most gambler forget the warning of casinos that said gamble responsibly, although they may not have explained it in details but it means gamble with caution, don't be excessively involved with what you can forfeit, for me I just think that gambling shouldnt add to anyones burden rather it should be an activity that people should engage with smallest amount of money to avoid regret.
I agree specially with your last statement that gambling shouldnt add to anyone's burden, and to add, I did say that gambling is supposed to be a burden lifter.
What you said in the first part of your comment is not exactly correct in my own point of view, personally, I've always viewed or seen gambling as one of the ways one can relieve him or herself from stress, can be what ever type of stress, maybe stress from work or business place, I mostly gamble to ease myself some burden and keep myself away from over thinking, gambling is a good way to pass time most especially in the evening when one has nothing to do, I usually just sit on my couch and Gamble into the night, having fun.
But then, the truth is that not very many gamblers treat gambling that same way, some are often gambling for money, and this totally removes all the fun, gambling is best enjoyed when winning money isnt a priority.