Interesting. I sort of agree with the principle, but people have kept cats (worldwide) for centuries, and allowed them to roam, so I feel it's too late to curb that now....The cat's out of the bag, so to speak!
Svalbard, an island near the N Pole, bans inhabitants from owning cats altogether, due to the problems they cause for local wildlife.
I see curbs similar to this - although not as extreme - coming to the UK, for cats and dogs.
I moved to my current town 5 years ago and, in that time, the number of places where I can walk my dog off of the lead has dramatically shrunk. I see an 'all dogs on leads in public spaces' rule coming in eventually and, for that reason, will proactively stick with breeds that don't have huge exercise requirements.
It's all a curbing of civil liberties by the government, which I don't like one bit. But on the other hand, people are such selfish, inconsiderate fuckers these days 🤷🏼♀️