Porn is an industry that most people are acquainted with but really don't know much about. Pornstars are sometimes not viewed as human beings with normal lives and such. We find it very hard to imagine that they have families and parents and siblings, and even harder to imagine is the fact that they know what their profession is.
The YouTube channel 'Wood Rocket' asked several actors from the pron industry about how their parents reacted when they found out about their jobs. Surprisingly enough, most claimed that their parents have been pretty supportive. Of course there have been odd moments, but that has to be an occupational hazard i guess.