I reckon if you have the chance to do your initial flight training in a taildragger take it. You'll learn some great skills:
being aware of surface wind speed and direction - starting on the drive to the airport and ending after you've secured the aircraft in a hangar or tied it down.
Anticipating turns, minimising use of brakes whilst taxiing or else you'll wear them out!
How to control the effects of slipstream and P factor - modern trainers tend to display only subtle effects
At times you will need full rudder to keep the aeroplane straight, this comes in handy on multi-engine aeroplanes in the event of an engine failure on takeoff.
Understanding / anticipating adverse yaw and how to fly an aeroplane in balance (again, helps with control during asymmetric flight)
Taildraggers are often aerobatic - therefore good spin awareness trainers
Most taildraggers side-slip well, side slipping is an essential skill for crosswind operations - whether you use crab, wing down or combination technique
Speed control and aim point retention on final approach is essential if you're going to land without running out of runway doing three point landings
Establishing a consistent landing attitude, each tailwheel type has only 1 attitude for a three point landing. Nose wheel types will accept almost any attitude and inconsistent results
Correct use of controls during rollout on landing - most nose wheel aeroplanes will accept letting go of controls, which may bite you one day.
These are a few of the basic skills I believe a taildragger demands of pilots. These skills are not beyond the average trainee, taildraggers are just not tolerant of slack pilots or instructors whereas tricycles can be most of the time.