People often have a Not Invented Here distaste. That is, if they (or their group) was not the origin of an idea, then it will not be adopted. As we all know, young men are given every disadvantage; there is no reason to add to them.
When you see a good idea, make note of it. Recognize it for a good idea. Put it away, make it part of what you are and what you will do.
Once one accepts good ideas, it it often difficult to learn to recognize them. Often what is proclaimed loudest by friends or media are not good ideas. Good ideas typically can survive a test of critical thinking, where they are analyzed from many directions for consistency and correctness. But that isn’t enough, they also need to be beneficial (or at least potentially beneficial) to you. Perhaps commenters could give other tips with respect to recognizing good ideas.
Short story – recognizing good ideas can be of great benefit, saving you work of trying to generate them (which you might never do), so that you can be off to implementing them