For the first time in history, there are four different generations working side-by-side on the job. Each one has its own attitudes, perceptions and values, which can make it challenging for people from different generations to co-exist in the workplace.
When you're the youngest worker on the team, for example, older workers might not take you seriously. You could be viewed as a child who doesn't know as much, and who doesn't have enough experience or business acumen to succeed. If you're the oldest worker on the team, however, people might view you as old-fashioned and not "up with times," or they might take your input as you trying to push ideas on them.