Im 16 and I have the same problem, I cant grow any sideburns, all my friends are like 15 or younger and they have long and pointy sideburns. I used to just grow out what hair I did have on the top of my ear and i put gel in it and gelled it down to the bottom of my ear but i didnt like how it looked so i just shaved it, My friend said if you go to certain barbers they have this thing thats really sharp like a knife but it doesnt cut skin , theyll press it really hard...