RE: Why need low wing trainer?
In many ways it boils down to money. Learning to fly with precision takes a while and almost all people lose a few planes during the process. As noted pattern planes are not the most rugged as weight is important on them. The ain't cheap as well. The planes, engines and servos are all more expensive. If you can afford the replacement cost then go for it. Personally I would start with a 60 sized then move to a 120 sized after a few hard lessons. If you like kits then the Koas or tiger 60 are good choices. A few changes during the building can make then decent precision trainers. I would follow up with something like a focus sport. I am building a focus sport to use while I move up a level and have a harder sequence to learn. If I make a terminal mistake If have only paid half price for it.