It's said about brain that, "use it or lose it" — now, question being, do you think if person plays brainless gambling games such as slots, dice for major part of his/her daily routine, will it make him/her dull?
Edit: "brainless" as in playing gambling games that does not require using brain, I thought it was clear especially given examples.
I don't know if am the only one that sees the word ''brainless'' as not the appropriate word to use in this context but however, whether you brainstorm on a game or not, they still depend on luck in order to win just that the luck for games like slots and dice it is very obvious that those games are completely based on luck, no skills, no strategies just roll it and whatever it turns out to that's just it. However, i don't think that those games make one to become dull just that you can get bored after making several attempts without winning.