Im going to get flamed for this post, but I won't apologise for it. I may delete it quickly though!
I'm sorry op, but I cannot relate to you at all, you have a house, a big house, a safe house in what sounds like a nice safe neighbourhood, your main complaint is that you don't know your neighbours? Really? Really? Not that they break into your house, have loud parties, are peodophiles, criminals, drug dealers, but that you have no footpath and don't know your neighbours. You have a low mortgage and can afford to live, comfortably by the sounds of it.
I'm with your husband, why would you move? To compromise your lifestyle, have more expenses, stamp duty, moving costs, no doubt a higher mortgage. To move a km or two, to where you may or may not have nice neighbours that the kids may or may not get along with and play with.