You’re comparing apples to oranges here, because your internet connection is not something you have control over or can do anything about. Checking that your headphones are fully charged before running a marathon is absolutely something you can (and should) do something about, and you know in advance if your device has issues and should plan accordingly with a contingency. Anything less is you planning badly. …but being surprised that Comcast is a highly unreliable ISP really is on you, that is almost common knowledge these days.