I don't know.. I was 19ish.. my beard growing prowess hadn't quite come to be what it is today.

But either way.. short hairs seem to be part of what makes a chinstrap a chinstrap.... so when the hair gets longer, it would no longer be a chin strap. Yet when a beard is arranged in a strap like fashion I think the douchiness of the wearer is directedly correlated to the length of the beard hair.