I have a father and daughter who have done my Greenways audax each year. He uses e-brevet but she loves the info’s. She is now 18. I’d be careful about saying one age group wants this, and another wants that. I offer traditional and modern and let the rider choose.
Yes.
And "old-fashioned" brevet cards + stamps have proven very popular (and photogenic!) on the Transcontinental Race.
fully stamped brevet cards are the best.