Is There a Subset of Activities That Are More Predisposed to Addiction?

Some substances or activities are more prone to addiction than others. We can't just say, well, it's entertainment, o let people do what they want. And we don't seem to really want to tackle that in an explicit way. I'm not sure i know how to, but i think that's what cau s me so much, unease. The analogy to social media is really interesting to me - there we have a very recent experience where an industry has done everything to increase the amount of time that we spend with these products.