I have tried making people sick by using one of the stews and then you can make a doctor progress quicker. This does seem a bit mean, but no harm comes to them in the long run.
I have a few elders who mastered building, farming and research. One I got to a master parent. Two of my elders didn't master building and there was nothing else to build, so I just kept dropping them onto a hut so that they fixed the hut and got master status this way. It was very tedious, but they were obviously close to becoming masters.
Carol
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"There are 2 ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle."
Albert Einstein