I am no cat lover that is for sure, I contend that most cat people are those who are too lazy to take a dog for a walk.
Nonetheless, allowing your cat to roam in others gardens and kill birds etc. because you will not hang a bell round the little darlings neck as it annoys, so what if it kills birds and other creatures, you will never see the carnage whilst having your toes up on the bed or sofa.
I would still not ban them or insist they not leave the house but imagine if they could only do so under the same conditions as a dog, on a lead, and the owner had to pick their stinking poops up.
Working cats I would exclude from these conditions as on farms etc.
Downing st, cat ???????????