Staying in your comfort zone provides you a safety net from rejections, criticisms, failures and many others.
However, in a world where change is the only thing that is constant, expanding your comfort zone is difficult let alone, stepping out of it. You will be faced with uncertainties and doubts.
You begin to question yourself if it is the right thing to do. When seeking self-improvement, playing it safe will never help you change for the better.
You live a life of mediocrity and you are happy staying in the safer zone.
Contentment is definitely great, but there is a thin line that separates it from mediocrity.