The older you get, the more experience you have with all kinds of relationships and social interactions.
When we're kids, we think that everyone has the best intentions. However, we quickly learn the hard way that some of the people we meet will affect our lives in negative ways.
Eventually, this life experience helps you avoid dangerous people by giving you a list of red flags to watch out for when interacting with folks for the very first time.
A whole host of people took to Reddit to share the red flags that, in their experience, instantly prove that someone is untrustworthy.