Im thinking 4 is a little young...
PLUS..DD still has a dummy and comfort blanket!!! Im ok with this as its only at night time, but what to do when the friend stays over!! She will probably agree to leave it with me but when she starts getting tired and they start settling down she will probably start asking for it and crying etc..what if this little girl tells her friends that she still has dummy/is a baby etc?? The little girl can be a bit..wont say nasty as she is only 4 but you know, funny.
is 4 a bit young?