I said in the first post that units could destroy trees only with specific things (explosives and flames) that of course not all units have! It would be silly to allow an archer to destroy a tree but i dont see anything wrong if a catapult destroys a tree with a fireball
Still in my opinion would be nicer to destroy them than to walk through them because yes, some units may walk on the trees or through, (maybe archers or elfs?) but what about big units?? Plus destroying them would require you doing it and it would require a strategy while walking through them would require you just a click (and then everyone would use shortcut instead of the roads, while destroying it would require some seconds).
In my idea units could destroy a tree in a time that we should decide (not too small so it would require a "smart use" but not too large neither otherwise would be useless.
btw im glad some like my idea i thought i had all the thumbs down for this