I could talk about all sorts of societal ills under that title, but I have a simpler intention.
Trees may be shade tolerant or shade intolerant, acid loving or acid averse, drought resistant or waterlog intolerant, disease resistant or disease prone.
White Ash trees are rather disease prone, particularly of late with ash borers, though I have observed pink arcs in the grain of dying trees that I have cut down. Ash trees are also mildly shade intolerant so that they attempt to grow above other trees that would shade them out. This may result in them being tall and thin with very few limbs down low. I was asked to cut down just such a sickly, spindly tree today. It was about 26 inches in diameter at the base and very tall with few branches, save at the top. It is hard to wield a chainsaw and phone camera together, so I only have two pictures of the trunk on the ground. Check them out at “Taking out a dying Ash tree.”