This is hard - generally IME I have found mums find it easy to get excited in things like the teacher/parent conference while dads find it hard to get quite so excited.
Neither is right.
What's necessary to figure out is the investment each party is making into the event. That tells you how seriously to take it. When things are delicate clearly its necessary to approach things particularly carefully!
Best - GFI
Me: 40ish W: 40ish Together: 20 ish years Married: 10ish Years