Not only does the training system need to be better (though I've only ever seen FI's showing the planning side properly), the information providers need to sharpen up their act.
NOTAM's are better than they used to be, though they are in no way perfect, Wx briefings aren't standardised and general route information is often sketchy unless you pay for it from a commercial provider.
All of these things should be combined for an easy to use system that gives clear information. A bit like the packs that are handed to commercial crews.
When this is done, then we will see less problems like idiots blundering into TRA's.