Most of the casinos in Ireland are in cities. They just call them gambling clubs and that's the way around the rule.

most of the residents are involved in the farm business in some manner

3.5% of the workforce were farmers as of 2016. It may be one of the more common description of jobs but most (50% +) of the residents aren't involved in farming.

Maybe 80 or 120 years ago it could have been closer to 50% of the population when many more people in the countryside had to make their own food to trade with others and survive.

Less than half the population live rurally currently. Most people are in cities or towns