Only waste if it's defined as such. People get to decide how "bad" spending time doing things is for themselves.

Too much of our lives are in a reactive state -- responding to events rather than being proactive. Thats a good survival mechanism -- but it causes anxiety by overanalyzing, rather than living in the moment. I think limits and boundaries are important -- but its too easy to let emotions carry us away. Rationality is only one facet of human behavior.