yes baby faced females are very attractive mainly because they look younger to man - thats one of the reason which answers why men like younger females.
Just check out if you are baby faced or not :
1) Large curved forehead
2) Facial elements (eyes, nose, mouth) located relatively low
3) Large head
4) Large, round eyes
5) Round cheeks
6) Small, short nose (Most important I guess)
7) Small chin