Why don't we understand prime numbers?

Could you elaborate on why we, as a society, seem to have difficulty comprehending the concept of prime numbers? Is it due to a lack of proper education or are prime numbers inherently complex and abstract in nature? How do we bridge this gap and ensure that individuals, especially those interested in cryptography and blockchain technology, have a solid understanding of prime numbers and their importance? Additionally, what are some practical applications of prime numbers that can help demystify their significance and make them more relatable to the general public?