I always wanted a brushguard until i started reading on here about the damage they can cause in even a minor collision.
That said, for a 16 year old it's a tough call. On one hand i remember being 16 and the cool factor of a 4runner with a brush guard would be pretty high. On the other hand, being 16, the odds of him hitting something are higher.
Anyway, OP, it wasn't your question, so take my opinion with a grain of salt.