There are a lot contradictions about gambling, In my opinion there are not only bad things about gambling but a lot fun things. Gambling without good thinking and planning will be bad. If you decide to all in, sell your home and all assets just to gamble than i'm sorry for you. Gamble is like a drugs for me, it's okay if we use a little bit to relieve stress or anything that gives you a positive impacts but it will be bad if you use for addictions.
Good or bad is based on the dosage to use it.
Yes, if it is necessary to avoid something bad from gambling, it seems that there must be education before starting gambling so that they are able to keep positive thinking when they get lost in gambling. So far there have been many people who promote gambling but have not found coercion from them, meaning those who gamble of course have become an option for themselves to gamble for various reasons.