I wonder if it is a well established knowledge that ISPs are a profitable business model, why is it that local governments take the cudgels of offering their co

I wonder if it is a well established knowledge that ISPs are a profitable business model, why is it that local governments take the cudgels of offering their constituents? Are there legal restrictions in place that would prevent government organizations from doing so? Or is it more on the technical perspective on why this is not being explored? I see that public services at some point would include providing internet access as something vital alongside use of technology for services.