As human beings we tend to be afraid of the idea to do things differently as we fear being rejected by society. Being different is sometimes a good thing.
Take for example Lady Gaga. She totally does what she feels like doing. She doesn’t seem to care what other people will think about her. She has generated a huge following over the past few years: she has been in the limelight.
Conventional is a good fallback position when you realize that something you wanted to try out for the first time doesn’t seem to work out the way you had anticipated. You can always conform to the accepted standards which people have come to accept as the norm. So conventional doesn’t always work well for other people, being different can lead to various opportunities and experiences.