NO TRESPASSING

I spend a lot of time riding my bike on the back roads. And it just seems that everyone has no trespassing signs posted on their property. It also seems that there are more and more of these signs all the time. Sure, everyone has a right to do that. But is it really that important? Are we really that concerned about where our boundaries are? Plus, when the signs are as dense as in the photo above, it starts to look junky.