We had that same problem, someone planted a tree right next to the front door and it was causing problems. We put 2 in afterward, just further out in the yard.
I suppose people look at the little stick-looking treelings (is that a word?) and can't imagine how large they will get over time.
We do have 2 other trees in the back yard and there are a lot of big trees all around so we won't be without. And definitely more up there than around here...here there are cottonwoods along the river and a few pine trees. that's it.