George scolds Lennie for talking because he doesn't want employers to notice that Lennie has mental issues that leave his intellect behind, as this could prevent Lennie from being hired.
We can reach this answer through the following information:
George knows this can be a problem for Lennie to get a job and so he stops Lennie from talking to prevent employers from realizing he has problems and not wanting to hire him.
George does this too because he fears Lennie will be exploited, as he is so ingenious.
More information:
https://brainly.com/question/11166619?referrer=searchResults
https://brainly.com/question/19703598?referrer=searchResults