Just a thought. If you play with 30 day months, it's clear that fruit trees are completely useless, but the game actually has 9 days per month by default, which means I have a maximum of 3 to 4 harvests per year for the bushes, compared to one harvest for the trees. But when it comes to trees, I like to have double or triple the harvest. That's why the question here is what kind of settings you play with. Because if these are standard then trees make perfect sense.