system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why do all pilots try to escape through a blockade, and not attempt to go around it via some other means?

Watch any SW movie or series episode, and if there’s a blockade, they try to go through it? Is there a reason for this this? 

Think of it like this; Imagine I had to escape earth and there was a blockade positioned above Australia... why go up and straight out through the blockade? There’s a whole sphere of exit points you can adjust for. Head to Greenland and try through there instead... maybe head towards Brazil?

Or lets say you’re coming through the atmosphere, and that’s when the blockade shows up? if they haven’t locked a tractor beam on you, just change direction at that moment.  Go .456 instead of 10.765...

Space is super vast and those ships, even the biggest of the super star destroyers, are wicked tiny in comparison to a planet.  Why are they treating it like the only way to go; is coming through a tiny tunnel. 

There’s no way that all of the space can blanketed.
gpt
Jumping into hyperspace blind is basically suicide. Due to this most systems have few reliable places to jump out system. A blockade simply places the bulk of the opposing force to cover the most well known routes forcing a fleeing opponent to go through the enemy in order to escape.