Well
It is different around the country.  Texas has city ordinances but most of population lives outside of city limits 
 
So the county would be true enforcer but most are civil issues 

Changes are needed but if you have no restrictions you will have chaos.  Not everyone lives the same way or cares about the same things 

Believe me I know they need retraining 

The rentals are not vetted and people don’t care and don’t take care of the properties.  It’s actually pretty common 

Slum lords etc