When you have a market niche - then sooner or later it will be filled. It does not make much sense to blame "concrete companies" - because once you close them they will be replaced by others. You need to make laws that would close the niche of providing the 'particular types of services that are problematic' entirely. And making those laws is difficult - because forbidding something always limits the freedom. There are lots of people here who believe that drugs should be legal.
And it is internet and smartphones that created these market niches putting us into that awkward position. It is also practical to focus talk on them - because there are concrete advice on how to configure your (or your children) smartphone (or internet connection) to make it less addictive. It is something that can be done without any collective action problems.