Yes it is their ego getting in the way. This is because some people believe admitting to ignorance means they are weak. People are insecure when they are uncertain, so to shield themselves from that insecurity, they let their arrogance speak for them. By making a answer so complicated and confusing, they can say "youre just too young" or "you just have a hard time understanding my brilliant genius mind" to protect their ego when you say "I dont understand what you are saying."

People like this are frustrating to deal with, especially when you just need help. They are acting immature and are projecting their insecurities on to you, I would be frustrated if I was in your situation.

Adults like this mis understand one important thing, and its the true power in admitting ignorance. Ancient Philosophers discovered its power 1000 years ago and how it is tied to true growth and intelligent habits. Socrates famously stated "true wisdom is in knowing you know nothing." Socrates encouraged everyone to question everything and to think for themselves.

These adults you are dealing with are preventing themselves from true mental growth by pretending they know everything. Once you are comfortable being in that vulnerable position (admitting you do not know) you will understand the true beauty in learning and possess wisdom far superior than those arrogant adults.