I was trying to avoid getting involved in this thread, but???
I am really not sure why an endorsement is really neccesary. As mentioned by others, up until the late 1950's nearly everyone learnt on taildragers and thought nothing of it, when the early Cessnas and Pipers stuck on a nosewheel it did make things a little easier (too easy) but had the effect of producing less compeptent Pilots. Now to get T/W endo all you have to learn are few different techniques such as;
- The Rudder pedals are not footrests
- How to make a proper balanced turn
- The correct approach speed
- How to hold off and flare correctly
I did a bit of my Training on Chippies and Tigers and later on owned a Tiger, Super Cub but mostly many hours on a Cessna 170A.
I was trained well and as such never had a ground loop in over 2000 of T/W time.
so all those that are a bit tententive about learning to fly a "proper Aeroplane" my advice is go to it, the best money you will ever spend.
Now where did I leave my Pipe and Slippers?
Cheers