Studies suggest that our brain is soothed by conforming and looks at social disapproval as danger, making the act of conforming more pleasant. Instead of simply conforming, be aware of when and how it happens and make a choice.
Dr. Noam Shpancer, over at Psychology Today, points out that humans are naturally wired to conform because it feels like relief:
The philosopher Hannah Arendt famously argued that the atrocities of the Holocaust were not caused by psychopaths but by ordinary people placed under extraordinary pressure to conform. Since then we have learned that the pressure need not be extraordinary at all. In fact, it may not be experienced as pressure, but as relief. Human beings are herd animals. We survive only in highly coordinated groups. Individually, we are designed to pick up social cues, coordinate and align our behaviour with those around us. Recent research has shown that social disapproval provokes the brain's danger circuits. Conformity soothes.
This happens for a couple of reasons. First, when we find ourselves unsure of what to do in a given situation we look to other for informational cues to help us understand what's going on. When we're unsure, our instinct is to follow anyone who might know and, if they seem to, conform to their behaviour. This is our second instinctual action—to follow normative cues, or to copy the behaviour of someone who exhibits that behaviour knowingly and comfortably. Basically, it's in our nature to conform because it's how we learn. When we don't know how to do something, we watch someone else do it and try to replicate that behaviour on our own.
Watching and learning isn't bad. The problem arises in our willingness to trust the information we find when we're unsure. To mimic another person and conform with their behaviour has less to do with them actually knowing the right thing to do in a given situation but simply that they seem to know the right thing to do. Rather than making a critical assessment of their behaviour first, our instincts urge us to assess behaviour on a more emotional level. If someone looks like they know what they're doing, that's generally good enough for most of us.
Because conforming is natural and comforting, it's not something we either want to or actually can remove from our behaviour. We will always need to conform in some situations, and if we don't our behaviour can seem off-putting to most people. That said, our instincts aren't always right and so it's important to assess behaviour we feel the urge to follow before making a leap of faith.
You are a conformist (that is, you are human) [Psychology Today]