Wonderful, Wonderful Wonderful question. You should have a level of conceit for asking it!!
Fun huh? Pride is spoken and written of as bad. And yet Pride is demanded by us parents from our children. So cool. "Be confident in all you do, and with your wife second guess" A "good" Christian will tell you pride is a sin. A "smart" Christian will tell you if you are not proud of what you do, do not do it.
Conceit is amazing. In high school dating we used it a lot. Then I found out that the conceited girls were the most insecure. And in that I found many good girls who were friends. Because I was insecure also and we could talk.
Conceit is a mechanism for those who are hiding something else. It is not of the ego as so many think. It is a total facade. It is a force field. Watch a child play by herself. Wow. Her imaginary friends will be good and bad. She will associate with the good (assuming things are good) and be conceited in her victory over bad. She will learn conceit all by herself.
Think this strange way: Conceit helps us through the grieving process. When we are ready to crumble into a small ball; conceit comes and lifts us into something better than the rest. "head up girl, act mature".
But conceit is not of us. It is of others. Conquering our imaginary playmates.
Self confidence is not self esteem. It comes from hard work. It come from the drudgery of doing it over and over and over again in pain and in the rain. It is earned through sweat, blood and tears. It Semper Fidelis. Hoorah!
I live in what is the largest military town in the world. (well outside of it) Us old folks own our homes. Those young folks own our souls. They are spit polished and straight backed. They call me sir. They are self confident and I am confident in them.
They are not all smart and who I want my daughter to marry. But they serve me and my country. And we are self confident in them.
Oh yes. The major difference Between our soldiers who are confident and me who is conceited is hard work and earning it. By the Bible it is known as false pride what I have. And Great pride in our youth.