re: honest question…why do so many of you soak your yard with chemicals?

Was reading through the thread and was about to post that I bought a lot of the pre/post emergent stuff to start maintaining my lawn a few years ago; but then realized how much my kids love the clovers because they can come home everyday after school and just "pick flowers". There are some areas that I will want to tend to in the fall for some of the less desirable weeds after my landscape guy topped me off with some cheap shite.

But after seeing this pic, I now want to do this somewhere in my backyard. How did you start?