A couple of the people I work with have kids and they come in and talk about their individual trendy things. I've found the best counter is to shift the conversation to something they might have interest in that you know more about, and then turn the tables and start talking incessantly about it. I've found that super hero movies works best for me.
George Carlin wrote:
I think it’s the duty of the comedian to find out where the line is drawn and cross it deliberately.