Are the phrases I used in the sentences below used in English? Are they natural and common in colloquial language?..
Like someone falls behind someone, can these sentences be used:
I'm behind everyone my age.
I'm behind my class.
And similarly can "ahead of someone " be used to mean that someone is "better thank someone ".
I'm ahead of a lot of kids my age.
I'm ahead of everyone in my class.
So these sound natural and is it common and used ?