I believe the Tauck Bridges sailings are geared more to include children, not necessarily Gen Z’ers. Scenic and Tauck have options for faster walkers on their excursions and bike, hike options. On board is where the Gen Z’ers will do some eye rolling…I know Tauck can have some very silly, annoying games more geared to nursing homes or pre-school. My last Tauck cruise had a cruise manager who treated everyone as though they had cognitive disabilities. I would suggest scrutiny of the itinerary more than other factors. Are the stops interesting to multi-generations and are there options to explore on your own?