Just out of interest, do you think this scenario is unreasonable?
DB and SIL think my mum should visit them and their three children (aged 10, 8 and 6) about once a month, for a maximum of 60-90 minutes, and spend that time playing board games with the children as this is 'the only way to stop them killing each other', or alternatively the whole family will visit her on the same basis (with their board games). They live 5 minutes' drive away from my mum.
I think this level of contact is pretty minimal, and my mum finds it unsatisfactory as it makes it hard to develop individual relationships with each child.
There is, of course, history here (in my view SIL is a witch and DB allows her to get away with it), but I'm just interested in what people think of the scenario at face value.