This is actually a Rational Decision, because I determined to have a pair.
Alas, Nigel is pretty lukewarm on the driving gig. He’s much happier being a between -leases dressage pony for my friend*.
Thus the acquisition of a second hairy pony mare, who is only two, but has a very nice personality, and will** become a pair with Josie in a few years, leaving Darby as a single and Nigel in his preferred career***.
*Or she could ride him forever, should she realize that ponies are actually more fun than big horses.
**Deities of hairy ponies willing
***A pity, since he’s quite cute in harness, and moves like Darby