The general rule of tumb for Shetlands is that they can carry up to 1/3 of their body weight (including tack and rider) provided the child is a good rider who doesn't flop all over and pull 3x their body weight in a properly balanced cart.
That said - if the pony acts up and is getting away with things that the child is not skilled enough to correct you the adult can get on that pony for short periods of time to correct that behavior! A mature pony in godo condition is not going to be injured by 10 minutes of an adult on its back doing a correction.
The general rule of tumb for Shetlands is that they can carry up to 1/3 of their body weight (including tack and rider) provided the child is a good rider who doesn't flop all over and pull 3x their body weight in a properly balanced cart.
That said - if the pony acts up and is getting away with things that the child is not skilled enough to correct you the adult can get on that pony for short periods of time to correct that behavior! A mature pony in godo condition is not going to be injured by 10 minutes of an adult on its back doing a correction.
The general rule of tumb for Shetlands is that they can carry up to 1/3 of their body weight (including tack and rider) provided the child is a good rider who doesn't flop all over and pull 3x their body weight in a properly balanced cart.
That said - if the pony acts up and is getting away with things that the child is not skilled enough to correct you the adult can get on that pony for short periods of time to correct that behavior! A mature pony in godo condition is not going to be injured by 10 minutes of an adult on its back doing a correction.how much does the average 11 hand pony weigh?
I rode a shetland in France who I believe was about 11 hands, definently no bigger. She was not a modern built mare, but of the slightly stockier variety. She had no problem with me and I weigh about 110 lbs, so depending on the build, your pony should be ok for your child for quite a while weight wise.