As far as I knew chance lesson when I learned on math elementary grade, possible for a gambler to win is low and yes everyone can see the fact only a few can be very very lucky to win the prize and some others loss with depression. This attitude must be stay away and need some support from their family before the worst thing happen
this is the person's responsibility to stop the attitude. nowadays this is very easy to do anything and family member can't even know what he doing.
A person should be that much sensible that he know that gambling is not right for him and should stop playing gambling.
family would support him if family know anything.