@GrannyGrissle
I prefer to keep neighbours, even the lovely 'lots in common' ones at arms length. If things blow up/turn sour you are stuck with them. A quick chat, put each others' bins in/out and share excess bin space, exchange of cards (Xmas possibly Birthday), give and accept hand me downs check the old gimmer next door is still alive but no coffee dates or invitations. It's better to have different friends where there are set metaphorical as well as physical boundaries. Just works best for me that way. I really wouldn't give a damn about being an outcast, true colours always show up sooner or later.
All of this. Say hi when you see them, take the bins in, feed their cat when they're away, exchange Christmas cards, give their kids an Easter egg each etc etc, but NO to going into each others homes, socialising together, and knowing each other's personal business.
The worst neighbour disputes on 'Neighbours from hell' on telly, are 95% of the time people who were previously good friends..... It does eventually turn sour for some reason or another.
It has happened to me a couple of times in the past; me and DH have been friendly and close with neighbours, and for one reason or another it has turned sour, and they are 20 to 50 feet away from us.
It got to the point where we were walking a mile instead of a quarter of a mile to the nearest bus stop, to avoid walking past their house.
Never again. I stay civil, and will help in a dire emergency, but that is it.