You could also say life is too short to waste time retying inferior drawstrings. If learning the knot takes 5 minutes, it seems like it could easily save you time overall.
If you're spending that much time tying drawstrings I think you've got bigger problems.
I was looking for the comic and found this:
https://xkcd.com/1205/
(I swear there was a better one)
If you're spending that much time tying drawstrings I think you've got bigger problems.