When my friends had a child, I often began to think - were our parents always reserved in front of us. Were they always calm and reasonable. And I understand that YES. And when we were children, we did not understand how difficult it was for them to keep themselves calm. And I understand that this means that it will be almost impossible for a gambler to pretend to be calm. Therefore, I am critically against gambling in front of children. Because children can be emotionally traumatized.
If the parents are eccentric, they can emotionally traumatise the child not only by gambling, but in many other ways. And if the parents are calm, then the process of gambling can be without the absence of any emotions. Here the evil rather lies in what exactly can bring gambling parents. If they treat gambling as entertainment with associated costs, then no problem. But if they perceive them as a source of enrichment, then there is trouble.