I was just thinking about the 3 freebie skill cards offered at the end of the tutorial... (quickly looks them up)
AK I, EZ Cooking I, and LGT I.
It would be cool if the one you pick would determine a main "path" you could follow, still up to you what skills to learn but there'd be a % bonus to learning speed and what not according to which one.
Animal interation, Food and Drink making, or Plants and Trees. Have a kind of "class" system, names which I can't really think of at the moment, other than something like "Zoologist", "Homemaker", and "Horticulturist"
Might be good for some others too?