The bard, as part of the rogue group, was one of the standard character classes available in the second edition Player's Handbook; in this edition, the bard was regularized.
Also, not all babies are born with blue eyes. Babies of African, Asian, and Hispanic descent are more likely to be born with brown eyes. This is because darker-skinned individuals tend to have more melanin in their eyes than Caucasians. Even so, a baby's eye color may deepen over time.
You get one eye-color gene from each parent. If you have a blue-eyed parent, you can inherit Bb, and have brown eyes but still be carrying that recessive b. So if both parents have brown eyes but Bb genes, the baby can be bb, and be blue-eyed. Or it can inherit BB, or Bb, and have brown eyes.