ideal age to start going for low bodyfat percentage?

[tall_rich_muscular]

i know you gotta get low bodyfat to get better angularity but if im 15 and trying to also grow taller and get more muscular, i gotta eat enough to do that. is it healthy to be a low bf%(8-10% goal) while still growing? im 5'7 rn but its not over im not done with puberty and im about 15% bodyfat (decent ab definition, no real angularity in my face tho, no sign of hollow cheeks). should i try and get lean af or wait till im done growing and go for chicks then?

 

[Tesarossa]

after you assumed youve stopped growing. thats a good time to cut. Now solution me pls pls pls