why would it be wrong?
People's attitude and reactions when gambling often are wrong, but gambling is not wrong!
Indeed dude, it always depend on a gambler whether it will be wrong or not but gambling itself isn't wrong at all. Sometimes it also depend on the effect of gambling to them, for example if they got unlucky and lost a big amount , that time they will going to say gambling is wrong but if they got lucky and won , it's not

yeah, that is right...it is really how we accept the consequence of what we've done... as we all know there are big losses and small winning percentage in gambling, so most of the time we lost money in gambling, our attitude after losing could define if gambling is either right or wrong...
