I think a person's 'love of learning' might depend very much an his/her parents' attitude to learning. If a child is discouraged by parental antipathy to 'school' (and, having been a youth-worker attached to a school, I've seen a great deal of evidence of that!), that child might never find him/herself 'loving learning'.

Having said that, I also believe that damage to a child's attitude by parental negativity can be reversed by a good teacher. And I've seen that too.