"I don’t think the extra expense of doing the PPL on a taildragger is a good idea,'
I got my PPL as a 30 hour PPL, from 27 July to 21 August, on the Jackeroo modification of the Tiger Moth. With previous glider experience, I went solo at 2 hours 55 minutes.
The quality of instructor at Thruxton was excellent. I converted to a Chipmunk at Perth in 1 hour 20 minutes, and later to a C150 in 1 hour 15 minutes.
Getting a PPL on a C150, then converting to a tailwheel, then to a taildragger, would likely have taken longer.
If you can find a school with good tailwheel instructors, go for it.
( After not flying for almost 22 years, I regained my PPL on the C152, then after 3 years bought a tailwheel share, with no more instruction, which I've had for 29 years.)