I have not made this. It is like a sourdough bread. It looks like you feed the yeast mixture for some days.
You could bake one or several loaves to share. If anyone asks, you can have some starter to share also. If not, save the remainder starter to make at a future time.
According to one source I looked at, you can freeze the cup or so of starter until you are ready to use it again, there fore you need not keep feeding it all the time to keep it active. I have previously heard you can freeze sour dough starter successfully. I don't know what is the difference, if any, between sourdough and Amish Friendship bread. I like the name.