Yeah, it's really common. My mom would get pissed at me when I came home with a 2.5 GPA and would try and get my dad to spank me with a belt for punishment. But my dad clapped back at my mom and was like "why are you getting mad? Do you even help him with his homework or ask how school is going?" Silence from my mom. From that point on, my mom emphasized that she wanted me to graduate HS, get a college degree, and get a good paying full-time job.
I remember my wife's dad tripping out when he found out that my wife had to take elective classes that had nothing to do with nursing. He was legit going to go to campus and complain to the dean and demand a change. He was such an ******* back then, but he's mellowed out a little bit.