Throughout Romeo and Juliet, Shakespeare establishes the ideological divide that often separates youths from adults. The characters in the play can all be categorized as either young, passionate characters or older, more functional characters. The youthful characters are almost exclusively defined by their energy and impulsiveness - like Romeo, Juliet, Mercutio, and Tybalt. Meanwhile, the older characters all view the world in terms of politics and expediency.