The mulihull equivalent to the 29er would be a scaled down Tornado. The F16 or F14 could certainly be marketed as mini-Tornados
... whereas the RYA currently see the Hobie 16 as the youth cat. And the ISAF evidently have endorsed the SL16 (which whatever else you might think about it probably validates the view that the H16 is not the best youth choice).
Quote
but we would still miss the multihull equivalent to an Optimist. ... An F12 could be the answer.
Could the Hobie Dragoon fit the bill? How is this design faring in Europe? The RYA evidently use this for their Junior Catamaran Program, although they cite statistics for its (lack of) adoption to justify their stance on classes for the youth World's.