If manuals are almost impossible to find and in many cases a pain to daily drive, why learn?
It doesn't matter, in 15 years everything is going to be electric anyway. The electric platforms are getting better and better and better and frankly, will eventually greatly eclipse anything that internal combustion can offer.
They've improved range by leaps and bounds and costs will continue to drop. Once those two issues are comparable, you can say goodbye to gas powered IC platforms, and inherently, manual transmissions.