Nice production, but there are problems:
1. Ageism/stereotyping...I know of several octogenerians who are stronger than many 30-40 year olds. This group of Taiwanese men appear to barely be able to move...not typical and contributes to age stereotyping. The geriatric portrayal is too severe.
2. They probably wouldn't last long on the highway as they are very stiff, riding in improper formations, and barely able to get on/off the bike.
3. Why aren't they using their goggles? They would be unable to see with the wind punishing their eyes.
4. Why not show the 'group' undergoing motorcycle rider certification. I would have been just as impressed if they demonstrated humility and took care of business of relearning riding skills and safety awareness, for their own and others' protection.
5. Why doesn't this group simply choose trikes? They would have no problems with keeping the bike upright and could carry their medicines and supplies much easier.
All in all, I would give the video a C+, and would hope for better. It is a good idea.