Apart from the obvious benefits of learning to handle a real aircraft on the ground gaining a tailwheel endorsement may get you a job!
In a previous life I got a job mainly flying a Cessna 310 because I had TW time so could also fly the boss's Grummand AgCat!
When 310 sold I went with it as CP for the new owner and from there to QF.
So a TW endorsement helped me to a jet command!