system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] The Mind Stone gave Scarlett Witch mind powers, fair enough. Why did it give Quicksilver super speed? [POSSIBLE SPOILERS]

Such a strange choice for an Infinity Stone based around the power and workings of sentient creatures' minds.

And since Quicksilver's powers also originate from the Mind Stone, could he also be uniquely positioned to destroy it, like Wanda is?
gpt
I can only speculate, but perhaps the stone builds off the particulars of that person's mind/personality.

Quicksilver was always running away. His big moment was finally taking a stand and responsibility.

While Quicksilver flees, Wanda has a tendency to retreat into herself in stressful situations. She doubts herself or obsesses over the negative of a scenario. We repeatedly see other people try to pull her out of this. Hawkeye, Cap, and Vision all try to pep talk Wanda out of her "withdrawal from reality" at various moments.