Not sure about yes or no, for it’s upto you to decide. Ladakh has great altitudes, there is all chances of children getting motion sickness, altitude sickness and vomiting.
However if you can make all arrangements for the child comfortability, maybe you can consider travel, still up to you. Pack well, carry all medical aids, pack woollen wears enough, carry enough water, work on a travel diet for your child and carry the necessary required food, plan your itinerary well.