To find young players, try posting something with college math departments. I met the most young local bridge players through the area community college.

I'm interested in trying your game if testing is open. I find simpler trick games (hearts, euchre, spades, some branded card games like The Crew) get people ready for simple bidding using bridge rules, but they don't do anything to teach the concept of using bids to communicate beyond the bid's face value.