 Are you one of those people that never mixes their friend groups? Well, you might want to start. With Gen Z struggling to make friends and sustain them, there's really no good reason to gatekeep your friends. When you bring your friend from college to meet your friend from work, they get exposed to more perspectives, opinions, and ideas. And if they hit it off and become besties, they've strengthened their own social circle, which can literally help you live longer. So it may seem awkward or even scary, but the benefits of having a diverse group of friends clearly outweigh the possibility of bad vibes.