Really cute game. I played up to the level with the witch and the bridges and wanted to continue later, but saving didn't work in the browser version.
I tested it and saving works fine on the executable version so the issue must have been my browser. I was using Brave.
I think the difficulty is fine for a casual game, it could be even easier if the little path circles had numbers in them but that could look a little messy and people tend to be intimidated by numbers. I know people who won't play Sudoku for this reason.
Finally, feel free to ignore this last paragraph because it's just rambling, but I think the cute hedgehogs will never achieve true sustainability by only taking a single item because they don't check if a member of a different tribe has already foraged from that source. As a result, they can collectively end up being just as destructive as farmers and witches. In conclusion, sustainability in the forest is incompatible with racial hedgehog segregation.