Everyone is an individual. Not everyone who gambles will turn into a transfixed and souless zombie.
I have Gambled at land based casinos for over 24 years and regularly play at online casinos. (Once or twice a month). I view gambling as entertainment. I enjoy it. I budget what I can afford to lose and dont run to the ATM for more money when thats gone.
Is that true of everyone? No, its not. But for MILLIONS of people gambling is a form of recreation that they keep in perspective and dont allow to overtake their lives.
Would I let my kids play at a land based or online casino?
Yes. I have two adult daughters who do play with us when on vacation. They also have a drink from time to time and I would be really suprised if they hadnt at least tried Marijuana or some other recreational drugs during their tranisition to adult hood.
The key to anything, ANYTHING is moderation.
If you abuse Drugs, Gambling, Sex, Food, Nicotine, Masturbation, Television, Video Games or thousands of other things you will encounter during your life then problems WILL arise.