Mil is generally OK, kids enjoy seeing here when she comes to visit but she has asked if she can take our kids (4 and 9) for a few nights 300 miles away from us (where she lives) with very little transport links to get to if something were to happen to the kids. Our options for getting there would be a 4 and a half hour drive then a three hour ferry then another hour drive. Or a very expensive plane ride for 45 minutes then an hour drive.
Our kids have never spent more than a night away from us and at very most half an hour away from us. I think they would very ok during the day but at night they may become upset and wouldn't want that for them.
I'm extremely anxious about the whole thing and thinking of saying no but offering a compromise to say they could take them somewhere within a 1 hour radius of where we live that way if the kids were upset or something were to happen we could get there.
Could really use advise on this one.