R.E.
I too am now a stay-at-home Mom of four. However, when I worked for the state Child Development Center, the nurse practitioner recommended age 6 being the age to allow kids to go into bunk beds. I guess it just depends....I have a 6 y/o and 4 y/o son and they have bunks but we have had some issues with jumping and swinging off the beds. If I had a choice I would wait:-) Girls probably would not be an issue as they are usually not big daredevils:-) Good luck!!!