I live in a town like that
Everybody is related to everybody, the schools are full of third generation pupils and it’s a very tight knit community.
It’s a collection of cliques which are impossible to break into, the school run clique, the church clique, etc. The town lives in the dark ages, e.g at a social event married couples all sit together and single people are actually told it’s a married only table and are ostracised. Thankfully this doesn’t extend to the younger generations who could certainly teach the adults a thing or two.