To be fair, me and the ex did move in with the in-laws for a few months, in the province. There were two houses on the lot, with about 8 feet in between them.

I really liked the arrangement, and spent most of my time just playing with the kids, making and flying kites, and reading lots of books. I let the Mrs. run whatever needed running. In the house next to us we had the sister-in-law and the 8 children that she still had living at home (all under 15 years old). They were a super family, most welcoming, and I enjoyed every minute of the 3 or 4 months.

Repeated the same thing a year or two later, this time with our baby son there too.

However, these were extended holidays, not permanent living arrangements where naturally I would have wanted more of a say in things.