Why do people play ranked when they have shit to do XDDD

I never understood it, you are going into a game where you should know can go anywhere from 20 mins and up when you also have shit to do or have to sleep XDD. A part of me thinks it is them getting fed up with game and need an excuse to feed either way you get reported my guy. How in the Ever as a PSA if you actually have stuff to do try doing norms or aram they tend to last less time. Thank you for your time Summoners.
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