system
Given the following post, respond as if you're commenting on Reddit:
human
[ MCU] How did Thor not know he could generate his own lightning?

Did he never generate lightning before getting Mjolnir?
gpt
We don't know when he got it, but given that it was meant as a focus for his power, it may have been a gift when he began training, so probably at  adolescence.  This would mean that he learned to use his power with the hammer and it became a crutch to him.  He was meant to outgrow it, but never did.