https://www.abc.net.au/news/2021-05-28/all-canberra-suburbs-to-contain-new-cats-from-2022/100172644
This should be seen as a positive thing. Cats will live longer and be safe from accidents or people that harm animals, whilst saving wildlife.
My cats were always indoor kitties with a huge cat run after one cat was badly injured in a fight with a neighbourhood cat. After that we built a three metre cat run. My cats were healthy into old age but succumbed to cancer. But they all made it to 16 or 17.