seriously, why do i care????

my 6 year old insisted to share a room with her 3 year old sister. the 3 year old, slept perfectly fine alone, without the whole: leave the door open, leave the light in the closet on, lay down with me for a minute bs. i refused my 6 year old's request, however, my husband decided that it might not be such a bad idea, since our 6 year old is terrified to sleep at night by herself. in any event, they are sleeping together now. i keep thinking that this was a bad, bad idea, i guess we will have to wait and see.