DD has a pony and rides twice/three times a week for the yard owner. Pony is a step up for DD and keeps her from getting lazy riding her own ( rides hers 5 days a week). We have been happy with this set up. She'll occasionally ride for others if holiday/ill but every pony has benefited DD in some way or another.
New pony in the yard, owners are experienced but it's their DD first pony. The child is very young and on lead rein only. My DD has been asked to ride for them. Pony is small but DD is small enough to ride. DD would be doing all the things their DD isn't able to, so basically keep it jumping, hacking etc until child can. Pony is definitely a first young childs pony and so isnt a challenge for DD, won't teach her anything new and she would only be doing it as a favor as she knows no one else in the yard is small enough to ride. It will take up her limited time at the yard and take time away from her pony. Its also not just the riding. DD has always been taught to groom, feed and turn out every pony she rides so the time really adds up.
What is the usual agreement in this case? I feel this situation is different from the others as the owners will be the only ones really benefiting from it. DD is only 11 so can't paid. I've not grown up around horses so am a bit clueless with these types of situation. Yard owners suggested she could charge them for her time and "work" with DD then reduce our fees slightly. Others think it's just one of those things you do for others in a yard regardless of the time issues and the fact DD wouldn't be learning anything from it.
Owners have seen DD ride others and are getting impatient with my none committal answers.