[AJCaliciuri]

Ambassadors are usually assgined to give tours to school groups (like you said), but also to act as a guide for VIPs like Sponsors, Politicians, members of the media and other dignitaries.

Having active FIRST students or alumni, rather than FIRST staff, act as Ambassadors provides the VIPs with both a very knowledgable guide, and someone who has personal experiences participating in the various programs. It shows the impact of FIRST to them first hand.