Polarity is relative.
In this particular case, toluene is very non-polar. When compared to something like benzene, sure it's going to be polar. However, the difference is neglible in 99%+ of the cases in which you will deal with these chemicals. Especially for the chemistry involved here. By the time you've learned enough about chemistry to be involved in reactions the it makes a difference, you won't need to ask why, how, and other related questions.