If you want to have a little fun at the expense of your polished and well-living friend, just ask them what they think of their children’s internet habits. There will be much clutching of yellow gold Tanzanite pendants and decrying of The Young Generation and allusions to how well-behaved they were Back In Their Day.
They weren’t and judging by the 20th century pictures I have seen of what was up in The Good Old Past, they are very lucky that social media didn’t exist to damn the older generations with evidence. The Internet never forgets.