it's illegal
even though one of your family members is a gambler, but don't play together on one table. because that will destroy your own self-esteem.
I did not understand if say the country has legally allowed the gambling and if some family members plays together and some win or lose so how it will impact your self esteem. It is the luck based and if you win you are lucky else you can rise on other's luck if your other family member is winning at least