Rugby is a sport that has been popular in countries like England and Australia for many years. However, it never became as popular in other European countries. This is due to a few factors, such as the lack of a professional league in Europe and the fact that the rules of the game are complex. Additionally, the physical nature of the game also caused it to not be as popular in Europe. Finally, the popularity of other sports such as soccer also led to rugby not being as popular in Europe. As a result, rugby remains a popular sport in a few select countries.