Good advice, considering the fact that nowadays criminals are willing to harm people in real life specially for their bitcoin, it became more crucial now that everyone should keep their Bitcoin holdings to themselves, there is no point in Telling public about how much BTC you own.
I assume people would simply do that to show off and to impress others about how rich they are, but they don't know how many doors of risks they are opening to themselves.
I hate these new social media trends where people walk up to strangers on the street and ask things like "how much do you pay in rent" or "how much money do you make a year"...ignore them!
I've seen a lot of them too and I am pretty sure those social media videos are stagged, and anyone who answer them are not telling the actual figures, these rich people can't be that stupid, lol