its not really essentials for girls.Especially for the young girls below 10 I would say its best not to use proper make up but above that age is okay because girls wear make up because they think it makes them look more full.I am in fact a girl, but i don't wear make up i have learned that most guys like girls to be natural. But some girls believe that make up makes a girl stand out, I say since most every girl wears make up how are u standing out . I think this maybe are the reasons why girls wear make ups . :
1.They're insecure and don't think much of themselves so they want to at least look pretty
2.It's the "COOL" thing to do
3.They think it makes them look nicer and/or more professional
4.Boys like girls with make up ( or at least that's what they think)
5.They want to look unique just because maybe they have blemishes they want to cover up and they're trying to make themselves appear flawless
--
its just my opinion guys