Whirly
I think the advice to do the fixed wing PPL first is sound.
Learn all the basics of being in the airborne environment without paying the high cost of doing it in a helicopter, then that acquired knowledge will help whilst learning to stay the right way up in a Robbie.
I came through fixed wing - then helis. (Admittedly with the RAF in the 70's!) and it seems like a sensible way to save money when learning. Just a thought from an old git.