The next few years will be very telling indeed, as the first "generation" of pilots who've never seen a steam gauge come up through the ranks. I feel that although advanced avionics offer a great deal more in terms of simplicity, and safety (when properly used and understood), one still has to learn how to read, use and interpret instruments. To use an analogy that I was fond of telling my students when asked this question, Glass is akin to a digital clock, wheras steam gauges are like a convential clock. Both are equally good at telling you the time, its just displayed in a different format. The digital clock is much more accurate, i.e. capable of displaying time to the nearest nanosecond, while the traditional clock provides less resolution and accuracy. Either way however, one still must learn what this information means. You still need to know that there are 60 minutes in an hour, 60 seconds in a minute, and 24 hours in a day to properly understand and interpret what either clock is telling you. Similarly, one still must learn what a localizer and glideslope are, how many degrees wide the course it provides happens to be, and how to bracket, track and correct for wind in order to fly an ILS. Basically, I guess what I'm saying is that I'm not sure the presumption that a student will not learn "the basics" in a TAA is an entirely valid one. One must still learn the basics, they are simply taught and learned differently.