We bought an older Shetland pony when my girls were very little. We figure she was probably around 20 when we bought her. The oldest daughter was barely two, and the baby was just under a year old. Could not have asked for a kinder, gentler pony. When the girls were really little, Kobosh (don't ask - my daughter named her!) was a true babysitter. The girls would sit in the saddle and the pony just slowly wandered around. Of course, the pony was quite the character, too. If you had something hanging out of your back pocket (bandana, wallet, hat or whatever) she would grab it and run like a puppy - daring you to come and get it!
As the girls grew, we found out that Kobosh wasn't nearly the stately geriatric pony we thought she was. We took her to playdays - and she could outrun some of the bigger horses! She was up for anything - and really seemed to enjoy the playdays, rodeos, parades and trails. She hated being bored, and would get herself in silly predicaments just to get attention or for a break in routine.
Shetlands tend to live a long time, and although she was a beautiful paint, when we sold after over ten years, she was completely white, but just as full of mischief as ever. We sold her to a man who wanted a pony for his grandkids to ride when they came to visit. She loved that old man, and having the grandkids come to visit. When she finally passed away, we figure she was pushing 40 really hard...
Kobosh never foundered - but then, our pastures were never really all that lush. They were mostly native grass and a little bermuda grass. We also had a little clover here and there, but she didn't seem to care for it over much and left it for the bigger horses.
Plain Old Dee, horses Dancer and Rain I believe in dragons, unicorns, good men and other mythical creatures!