Signage: super low tech

I love the wonderful naiveté of some signs. Saw one on a post today, that I really hope was done by a kid looking to earn some pocket money. Even then....it can’t be that hard to get your hands on a computer that at least has a word processing program...to make your sign look....just a little more professional. Or maybe even a Sharpie to make look like more than a blank sheet of paper from a few meters away?