Hi
I have 2 cats (both 6), 1 goes outside and the other lives permanenty inside, even though they both have access to a cat flap which is never locked, it's just their individual preferences. Both were rescues and the last cat being the one that rarely goes out - she just stays upstairs all the time sleeping. I would say that the only disadvantage you may find with having a kitten, is that very young cats have a great desire to explore and be inquisitive - it would not be fair to some extent to curb this natural instinct and the kitten may try at some point to escape outside. I think as a couple of postings have stated, you would be better giving a home to cat that is already used to living inside on a permanent basis. On the other hand, I live near an extremely busy road and in a neigbourhood full of rowdy kids, my cat who goes out 'has learnt' to stay clear of the road and the kids. If you got an older cat with 'more sense' you might be able to let him/her out anyway. A home check from any rescue would confirm any doubts as to the area and home suitability. Anyhow wishing you the best whichever option you choose - cats are great company.