I think even I must be beyond the age group it's aimed at. Having had fixed bunks and changed away from them I can only say whatever the size of the bunk as soon as children hit 5' they are not going to like squeezing into the positions needed to access the top one nor will they like not being able to sit up in bed to read. We've had three years now of not having a fixed bunk area and it's worked for us much better than with them. When children are younger and smaller they are however ideal. Do young families want to keep changing the caravan though when there are so many other drawers on the purse strings?