There's a saying about assumptions that you likely know. We'll censor it (#forthekids), but in essence, it's, "Assumptions make a butt out of you and me." The saying makes far less sense when censored, but my delicate eyes can't handle such obscenities.
We don't have a very rosy view of assumptions, nor should we. If I assume that someone else will take the garbage out when it's full, that sweet aroma of rotting food and three-month-old cottage cheese is going to filter throughout the apartment in a hurry. Nobody wins there.
In daily fantasy, it's a bit different.