The Disagreement of Catholics at Catholic Funerals

A lot of kids don't have a mass for their parents, even though they were completely devout Catholics. I am kind of getting sick and tired of when I say Catholic stuff at a Catholic funeral, in the congregation, rolling their eyes at me or like shaking their head in disagreement about what I said. It's just another complaint that I have. If you don't believe the stuff, fine, just sit there and be respectful.