In biblical times, teens weren’t generally looked on as children. Average life expectancies were shorter than now so people got to making marriages and families earlier, social maturity was expected earlier. I like what @ubersiren says, ”Having sexual feelings for someone because he/she is a child makes one a pedophile.”
Personally, I don’t consider anyone past 12yrs old a child anymore but a youngster, a teen, an in-betweenie. Adults attracted to teens aren’t necessarily pedophiles, more like lechers. Youngsters sexually attracted to one another is natural, teens attracted to teens is natural. Teens attracted to adults is natural but it’s the adult’s responsibility to not take advantage of the attraction.