Ancient Indian texts shows that gambling was a part of people's life.
Type of gambling may vary from country to country/people to people.
Gambling habit had started one of the biggest wars of Indian History i.e. Mahaabhaarata.
Here is an article about it if you wants to know more:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2910357/It's about
compulsive gambling, but probably in older times almost all gamblers were gambling addicts. That's because people weren't cultured much in the past, and hence they were greedy and envious beyond measure. They could put at stake their children and wife , they could easily kill out of rage. Only a few people are like that these days. Because of the education today we have higher level of morale than people used to have in the past. And that's why we can be responsible gamblers.
Correct, back then there was not as much information available as we have now about the dangers of gambling addiction and why gambling is not really a source of income except for casinos, not only that back then also existed the concept of debt slavery in which if a person could not pay their debts they could be made slaves and even other members of their family could suffer the same fate, since then we have advanced a lot but unfortunately there are still people which end up addicted to gambling.