Hmmm slideslipping and the PA18 - heaven.
Loved it so much, my instructor on the differences training asked me to lay off it for a bit.
Should it be on the PPL? Tricky one, but don't think so.
Personally, I feel 45 hours for the PPL isn't really enough. If we were to add in all the stuff we weren't taught, or was glossed over, it would be more like 75 hours, but that would seriously reduce the intake, so the desirable stuff has to be left out.
That said, the taildragging course, like the IMC rating, opened up new flying horizons for me.
My advice... Do the PPL, get some hours up showing the relatives their houses, then really learn to fly with IMC, taildragging, aeros etc.
KCDW
ps - the other real treat on a PA18 - really steep turns... 60 deg is for nancys!