Does everyone need a Will?

No, not everyone, but most people should have a Will. A Will allows you to allocate your estate differently than the default rules that will apply if you die without a Will. So, if you want your estate to be distributed differently than the default rules, then you need to have a Will. Another reason to have a Will is to make things a little easier on those people who will inherit from you. You may have good reasons to have more than a Will, but at a minimum, you probably should have a Will.