|Image from here|
Apart from the legalities of having more than three children in a 'family room' at a hotel/motel, there really isn't enough space. it is not like you are 'just sleeping' in your accommodation. Kids need a lot more 'down time' than that. So hotels/motels are out.
There are lots of two bedroom 'apartment' style self-catered places around. But two bedrooms isn't big enough when you have four children. It is hard enough getting them to sleep when there are two of them sharing. Which means you need more rooms, but three and four bedroom apartments are hard to come by. And they are really expensive because of it.
So you try for the 'holiday house' rental (which are great but you have to book a lot earlier than the day before. Just a tip!). But even they aren't always set up for the family of six. Most have two double bedded rooms and one with two singles. Sharing a room is hard enough, can you imagine two little kids sharing a bed? That has disaster written all over it.
I am beginning to see why people with larger families tend to have 'favourite' holiday destinations. They go to the same places over and over again. A case of if you find something that works, stick to it?
So tell me. Have you organised a holiday for a 'larger' family? How did/do you manage the logistics?