Too many diseases/dangers out there for HUMANS too. Its best if we never leave the house either.
If you have a cat that you choose to allow to roam the neighborhood without a license that dogs are required to have, don't be surprised that one day your feline friend never returns home in the morning.
It was either run over by a car, taken in by a classic cat lady who already has two dozen cats in her house, or trapped by me.
If trapped by me then I'll either drop it off at the local animal shelter where it will likely be put down within a couple of days or you can find it about 10 miles north in a wooded area where I dropped it off.......
The only reason I trapped your cat was because it kept coming onto my back deck at about 2:00 a.m and caused my indoor cat to go ballistic........I don't like being waken up by the sounds of cat howling........