Tree planting is always been beneficial to our earth. Here's why, as we all know trees can be useful in various ways. It produces the air we need by a method called photosynthesis that absorb heat then converts it to oxygen. Also trees is used to make papers, one example books that is used for entertainment, knowledge and also trees are home for various kinds of animals. So i dont see why not we should not plant trees.
It' good for us humans. The things that you've mentioned benefits us so yeah, if you think about it, planting lots and lots of trees is a pretty good idea. The planet doesn't us to do that. Once we've been shrugged off of the earth, this planet can grow trees on it's own without our help.