You don't need to take them around to teach them the plants to make them a healer. You can take any child, even a 2 year old and place them on someone who is sick. May have to do it a few times to get them "trained" but then they will heal. I often take the youngest child and have them heal when there are epidemics. By the time they turn adult they're Adept and close to Master.

Also, if everyone is sick, you can still heal. Just place a sick person on another and one will probably heal up, then use that one to heal everyone else.

Tess