It can makes you cry in different ways. One way is that you cry because you won something like money etc.Other way is that you cry because you lose all your money and that is not good. It is always that you lose more money than you win some.
Indeed, gambling makes you mostly cry when the you lose and I think everyone loses sometimes with gambling is normal and nothing more than logical.
I once made the mistake to just bet with blackjack, I won 1 time and that was the second time and with the second time I lost it all in one bet...