Ask HN: Gambling & smoking limited but not entrepreneurship and stock trading?

There are dangers involved in gambling and smoking. Consequently, governments provide limits/warnings to mitigate those dangers.

But why do governments not do the same with entrepreneurship and stock trading?

For example, 3rd party developers could receive a warning that gives them the expected profit from a particular platform. Without such warnings and in cases with very low expected profit, companies would be essentially getting free labor to promote their products.