There are a lot of good hearted people in the world today. As a matter of fact, I would say that over 90% of humans would help someone if they got the chance.
Unfortunately, there is an 80/20 rule when it comes to serving. This rule says that 80% of the work will get done by 20% of the people. This is true for churches, schools, businesses, government, and serving in general. Well if over 90% are willing to serve but only 20% are actually serving, what is the problem?
The problem isn't THAT people don't want to serve but rather the problem is HOW people want to serve. There are a lot of people that want to serve, IF they can do it their way. Everyone has gifts and they want to use them. However, if my gift is building and creating and you need me to serve in the nursery then I won't do it.
The point is this. Everyone has gifts and talents that they need to use. BUT sometimes it is best to serve where you're needed rather than where you want to be. Know the goal, focus on the end result, and do your part to help the team. Not every service and skill is needed all of the time. So help out where you can to keep the 20% from burning out.