One of our senior instructors is a woman who's maybe 23 - 24 years old and very, very cute.
When she gives checkrides to young men, or old ones for that matter, the checkride candidates are distracted, flustered and generally discombobulated.
It's fun to watch.
You mean someone doing end-of-course actually lets an observer come along for the ride? I'd pass that individual on the spot (provided he/she doesn't get me killed) for having the guts to do that. :-)