The survey of 2,000 Americans — commissioned by Evite — dug into the reasons why Americans struggle with new friendships. About two in five (42%) said they have trouble making friends because of introversion or shyness. For these individuals, it’s simply a struggle to come out of their shell and comfortably break into new social situations and circles.

A third of adults blame their lack of new friendships on their aversion to the bar scene, where potential new friends often go to socialize. Similarly, a third of respondents also feel everyone else’s circle of friends have already formed, making it harder to join the gang.

Other reasons for an anti-social attitude include commitments to family (29%), not having hobbies conducive to making friends (28%), and moving to a new city (21%).