For me it seems it is a bit too hard to get by food at the moment. That might be because some food sources are not implemented yet, e.g. wild animals, fruits (berries are in, but pears, apples, prunes, etc. are missing), but also sources of starch like water lily tubers, wild grains, etc. There are lots of things you can eat and they knew exactly what they could eat. There are still some stone age societies today, and they can list you more than 1000 plants without a problem, because that is what they need to know. Sure most of the work went into food gathering, but I don’t think they starved on a regular basis. They actually got 50 to 60 years old and it only changed when they started keeping animals, because then they got sick from diseases that jumped from animal to human.
Another thing that I noticed was that they don’t seem very bright in the game. The village was on the brink of starvation and a gatherer was in a field of mushrooms gathering them, but after 6 he just stopped and walked home. If you are really starving you don’t stop gaterhing mushrooms, just because you feel like.
Anyway, the game looks very good, the basics are there and when they implement and balance everything it can become a very nice game.