US business culture is its own special kettle of fish. You can’t expect all cultures to be the same. For instance, LinkedIn has historically been unpopular in Japan, but it can be useful in the US.

“How old you are at birth” varies depending on the culture. If you follow eg the long standing Korean method, I’m two years older than I am if you decide that age at birth is 0 months old. (South Korea is changing to the 0-at-birth scheme soon.)

That is so beautiful.