Is this a problem or are people just too sensitive?

Ashley

My fiancé and I have been criticized by family (mainly the older folks) for calling our 3 year old son “dude” or “bro” or the new and more popular one “bruh”, I literally see no harm in it because our son never reciprocates it, we’re still mommy and daddy to him, and it’s always said in a playful manner. Opinions on this?