Another question I have is If we have evolved into more intelligent beings over millions and millions of years, then why is it that more than three people I know have run into a wall in the past week?
Only three? That's way down from when I was your age. We must be getting better at either walking or placing walls.
Did any of your friends die from walking into walls? No? Then maybe you can see why there wouldn't be a selective pressure to eliminate wall-walking-into genes from the population.