Batya, I notice that you say bli eyin haraa instead of keyn aynhoreh. How do you justify using the sacred language of scripture for informal conversation when good old Yiddish would do? Are there any settlers who try to go Yiddish like 24/7? And how would you explain yourself to a Hasid from Borough Park who thought your casual use of Hebrew was a big big shanda?

PS: warmest congratulations and happiest of thoughts to your father on his B-day.

Hebrew is a first class, primary (there must be a  proper linguistic term for it) language, while Yiddish is, at best, a dialect used by some ethnically, European Jews. 

Hebrew is for both holy and everyday events.

Jews come from all over the world, and there are other Jewish dialects besides Yiddish.

Even though all four of my grandparents came to America from eastern Europe, my Yiddish is just New York slang.  I've been studying and speaking Hebrew for 40 years, though I must admit that my written skills are horrendous.  Living in Israel, where Ashkenaz Jews are just another ethnic group, and my grandchildren are Tunisian (via their father,) I rarely use Yiddish, unless there's no Hebrew equivilent.

Thanks for the birthday withes.

Shabbat Shalom