“The reason I say this is that you are most likely going to be taught the Simplified Form of characters (as most course in N. America lean towards the Beijing preference) and this is going to be of no use to you in Taiwan, in fact int may set you back and further confuse you.”
Of no use?! Really? It’s not like one can learn that many characters in the 3 months of study, and I can’t imagine it would be that confusing to switch, many of the most basic characters are the same anyway, and re-learning a few in Taiwan shouldn’t be that hard. When I first started learning Chinese, it took me forever to remember stupid easy characters like “ni” or just numbers 4-10. (Me being so clever and all, 1-3 weren’t too bad.) The thing is that it gets easier as you start to think in terms of radicals and stroke order and such becomes more natural. So, I think it would be still be helpful to start learning some characters.
Anyway, even if it is a bit difficult to adjust, it won’t be any more difficult than adjusting to all those nice “juanshe” sounds suddenly dissapearing.