There are many good reasons to make a will, even if you think you don't have much in the way of assets or property. A will ensures that your wishes are respected and that your loved ones are taken care of according to your wishes.
Making a will also allows you to appoint a guardian for any minor children you have. Should you die, leaving children, the Courts will decide who will be responsible for their care and up-bringing. The only way that you can have a say in this decision is by making a Will and setting out your wishes.
Without a will, the distribution of your assets will be decided by the state in which you live. This may not be in line with your wishes, so it's important to have a say in what happens to your belongings after you're gone.
Many people put off doing a Will, but are pleasantly surprised at how easy the process is.