Most municipalities already have laws against this. Hell, where I live there’s a law that can escalate to a 3rd degree felony if your dog looks like it can get out of its fence. What I suspect is an unsatisfying answer for you is that they aren’t enforced because they really aren’t a priority.

That’s unfortunately a part of living in a society. We can’t always agree on what priorities are worth our limited resources. We’ve generally agreed children are a priority and choose to enforce those laws more often. For every person annoyed by bad dog owners, there’s somebody who annoyed by laws not being enforced against noise pollution, poorly parked cars, yard maintenance etc etc. My only suggestion is to get engaged to try and get them enforced if you feel it’s a major problem

> But idk how to enforce good dog and cat ownership?

We have laws against animal abuse. Some of these laws have strong teeth and can put abusers behind bars for years.

I have two dogs, and they're both incredibly happy. They enrich my life, and I do the same to theirs'. I don't want the state telling me I can't have dogs. That's a kind of liberal fascism that goes against the grain of this country's ethos.

There are dogs suffering in shelters, but there is suffering all around, everywhere you look. Orphan children, homeless people, cancer. If you start passing laws against everything, we'll wind up living in a bubble.

Find negative externalities and tax them if you want a better way of dealing with problems. Don't ban dog ownership.