Do your F/O's call you by first name?
Ever flown for an Asian airline with Asian crew, Woftam?
As a matter of fact, do you ever SPEAK with any pilots who do?
Obviously not, as your question reveals your "ignorance" of other cultures.
But in reply to your question - one or two do, occasionally. But only because they have lived outside their home country for extended periods and have some understanding of our culture.
Furthermore, other (Asian) captains also use "Captain" or "- - - san" as the usual (and informal) form of address. NEVER first names!
You really need to expand your horizons, Woftam, and try to understand other cultures.
As to the CRM issue, IMHO, being TOLD to NOT include the F/O`s name as part of the PA subtly sends a message to the F/O.