Ab Initio on LEZE
There are examples in the states of this being done. As a LEZE owner I do not think they would be at all difficult to instruct on provided the back seat has the appropriate controls (some do). It would however be questionable as to the skill level of any person so trained who then went on to a more conventional aircraft. The LEZE is a wonderful machine, it is easy to fly and mostly benign despite its excelent performance. It does not prepare a student for other more traditional aircraft which would require very significant differences training.
I consider it would be in any individuals long term interest to learn on a traditional trainer and then do the simple conversion to the canard type.
PM me if you want specific issues.
Real pilots fly 'nose draggers'.
Andy