My cockatiel was partially hand raised meaning the parents fed them up to about two weeks old and then the breeder took the chicks away and finished the process.
Generally, breeders who want to sell tame, human friendly babies either either completely hand raise after two weeks, or hand feed to supplement parent feeding. Sure, parent birds raise their own babies in the wild, but they raise wild babies not companion birds.
People may disagree with me, but I think you can't beat hand fed vs completely parent fed for baby parrots including cockatiels. A hand fed baby goes it its new home completely trusting its new humans because humans were its "parents". A hand raised baby is generally more expensive because of the time and attention it requires but it's only about four to six weeks of work, so I think it's worth it. In many countries outside the US, especially in the far east, babies are sold at about four weeks old, unweaned, and the new owner is expected to take over feeding and weaning. This is a terrible practice! Most people do not have the training or experience required to safely hand feed baby birds and they frequently die soon after they're sold. NEVER buy an unweaned baby bird, and don't buy one from a breeder who will sell you one.
A stuffed animal provides a lot of comfort to a baby bird, and doubles as a rubbing object for an adult male when he's feeling "affectionate".