Is it correct to say " enough not to"?

Question

Example : You're mature enough not to listen to them.

Though it seems to ( implied command or advice ), it looks finer or better to say :

You're mature enough to listen to them. So why ( enough not to ) = Not firmly correct grammar.

Simply, if I tell someone ( You're mature enough to listen to them) = keep away from them at least at the present time. ( as long as you're still mature don't listen to them ) = correct grammar and understood. I don't agree with many people who are not native speakers using the language in a manner they want never thinking whether bad or good.

Do you agree with me ? I say ( enough not to ) is redundant.

I can't consider how someone of you interpreted ( foolish or stupid ) ! By God does the following similar sentence include any hint to mean ( Foolish or stupid ? 102 Issues in Grammatical Description — The readers may not be mature enough or linguistically advanced enough to comprehend it, even if there is space and knowledge.

Answer 1

You are mistaken.

If we say a person is 'mature enough' not to do something, often immature, stupid or foolish, we mean that we expect them to use that maturity to resist any urge to do that thing. To act like a grown-up.

Example : You're mature enough not to listen to them.

Here, the speaker is saying 'Someone as mature as you should find it easy to ignore (not pay attention to) what they are saying'.

The not to is essential. If you say 'You're mature enough to listen to them' you are saying something else. You could say 'You're mature enough to ignore them'.