As a junior I will share my perspective from the other side. Companies have outlandish hiring practices. They want juniors who already know everything. That's

As a junior I will share my perspective from the other side. Companies have outlandish hiring practices. They want juniors who already know everything. That's why admitting that you don't know something is seen as showing weakness to the company in the eyes of a junior. Also, not knowing things will actively keep you from getting promoted. I'm sure it's not like that everywhere but it's juniors playing the corpo game.