Well in university you are typically an adult and so what your parents think about the study material isn't a great concern, except for the case they are a subject matter expert.

Most university students still behave like kids. I don’t think you can expect under-20 students to behave as adults, honestly. I went to university again around 30 . And my wife teaches first year students. Maybe I am just old now but those students are just kids and behave like large children.

Transitioning to adulthood but there is still a long way to go for most.