"I don't have what I want so imma throw a tantrum and take it" is how we expect toddlers to behave. When it comes to grown men we should have higher standards in society. Most are perfectly capable of not committing armed robbery even if they aren't rich.
"I have everything I need and more, but despite you asking you can't have it" is how we expect people who never learned how to share to act. When it comes to grown men we should have higher standards in society!