'Talk sense to a fool and he calls you foolish' – Euripides.
This phrase so suits to people who either act stupid or are born with it. And when we talk about the instructions given to those people they hardly find them important and helpful. On the other hand, when we talk about a person who really needs instruction lines finds quite difficult to understand and follow them. So in real, for some people guidelines are not clear enough. Don't know whether the person is a dumbass or the instructions drafted are of high level.
So we can conclude that instructions that are written are required to be considered for those who find difficult to digest such information. Hope so, the next time people avoid such situations in future.