I'm sure he did get exposure to it, but being aware of a fact and being to apply it to your everyday life are two different things. Again, people in real life struggle with this for variety of reasons, from simply being shy, to being unable to interpet social interactions, to being high functioning autistic, etc
For what it's worth I remember some article where they said that in one issue Golden Age Wonder Woman went from wearing a skirt to short because someone realized that the skirt would be over head half the time. But having said that, DC has done a lot of embarassing things over the years, but I'm not sure that not explaining how her shirt stays up is one of them.