Sure, most people globally are familiar with the baby in the manger but even that has become more of a religious icon than a symbol of real faith.
Why would the angels appear to people like these? The pure, radiant, powerful angels of heaven, appearing in great numbers to the shepherds in the field. Men with huge beards, that live lives that are regarded as savage.
When we learn about the symbols surrounding Christ’s birth, it ought to renew our minds and give us reason to be thankful and joyful.
God’s timing is different from our timing. Jesus came at the right time, in God’s time.