regarding people saying "gambling is a waste of time", they have some point(but I am sure that is not the point they are trying to make), I mean, it is a waste of time if you are going to gamble impulsively, you are also fixing yourself into becoming a gambling addict if gambling impulsively is your normal behavior when gambling.
Now my question is, does it mean responsible gamblers never wasted their time and money when they are gambling?
basically yeah, responsible gambler, knows what they are doing, know the risk they are taking and usually gamble money they can afford to lose.
Then how about those losses that they have incurred, when they can use it to add to their emergency funds?
This can be said for a lot of activities that require you to spend money. it is a weak argument to use if you ask me.