Because it's not that simple. Every moment of a person's life adds to their sum total of knowledge but it's very limited. Simply being a living human isn't goin

Because it's not that simple. Every moment of a person's life adds to their sum total of knowledge but it's very limited. Simply being a living human isn't going to give you a good understanding of quantum mechanics or general relativity, but it will give you some basic idea of things falling towards the ground. Something being unintuitive doesn't mean just that the individual lacks knowledge but that there is very little chance that this knowledge would be encountered in ones life time at all without making an effort to gather a deeper understanding.