I believe that almost any entertainment can lead to one problem or another if abused and it is up to our actions whether or not we get into trouble. For example, reading can have a negative impact on eyesight if read in the dark, eating delicious food can lead to obesity, professional sports can lead to injuries, promiscuous sex can lead to sexually transmitted diseases, etc. The list could go on for a long time. So don't abuse gambling and keep your finances under control and then you shouldn't have any problems.