There's always been gambling, but there's a lot more of it now. Gross revenue has more than doubled since 2020. I think it's safe to say gambling's new-found ubiquity is a big part.
Again, this is referring to legal gambling, whilst I was referring to illegal sports betting, which we would have basically no good accurate way to devise the total number pre- or post- legalization.
https://www.statista.com/statistics/1332999/gross-gaming-rev...