We are the Average of the 5 People We Spend the Most Time With • Emotional Contagion • Have You Caught It?

I read this comment and it made me think. First I was pleased. Then I got worried.

"We catch people's emotions the same way we catch colds. It's called Emotional Contagion. It's said that we become the average of the 5 people that we spend the most time with, that we associate with." 
Marci Shimoff, author - Happy for No Reason on the show The Big Idea

After reading this, I thought, Who are the 5 people that I "spend most of my time with, associate with"? That would be The Boyfriend and my 4 youngest children. I thought great, I like these people. Then I thought about it more and realized that 4/5 of the people I spend most of my time with are people who are 1) still developing themselves (learning to navigate life, going through frustrations, finding who they are...)  and 2) that I have a major part in the type of people they are becoming. Is it a (vicious?) circle? Do I create my own problems? It goes something like this -

A mother can enrich, encourage, embrace and educate. Or she can deplete, depress, defer and dumb down. Either way we are contagious. I just wonder now how much of my attitude I have brought upon myself through my 5 people. 

What do you think?