Welcome to the board! I'm not sure which state you live in but perhaps there are some events in your area that have some lead-line classes that you could lead your child through on a well-broke, bomb proof pony or horse to get him/her started. A two year old non-trained horse is never a good idea around a child. Too many things could happen on even a well trained older horse. I hope you can find some reputable horse people that could guide you and your child in your learning process. Good luck and keep us posted!