Do people walk around and tell people how much money they have in the Banks? NO ..... Do people walk around telling them how many Gold coins are in her or his home vault? NO..... So...why would you walk around telling people how many bitcoins you have?
I think he is talking about your friends. Or any relatives asks you about what do you do for living. Then you have to tell them something to satisfy them. Then if you are doing job you tell them about your salary. And about money in the bank, i think no one tells about how much they have it. Same for gold.
But then why do tells about crypto. Because it's new for them. They are excited or getting profit.thats why they tell them about crypto,basically source of income.