How many countries have a welfare system?

Most countries around the world have some form of welfare system, though the structure and extent of these systems vary significantly. In developed nations, like those in Europe and North America, welfare systems tend to be more comprehensive, providing services such as healthcare, unemployment benefits, and social security. In contrast, many developing countries may have limited or less formalized welfare programs. Overall, it's estimated that over 100 countries have established welfare systems, but the effectiveness and coverage differ widely.