They are not there just for decorations obviously. They are meant to aid you in pronunciation. Just as in English—where if you don’t dot your “i” or cross your “t,” you’re left with a stubby little line that is dangerously close to becoming an “l”—French accents are used to distinguish between letters.
Thank goodness there are just five I should know;four accents from vowel(a,e,i,o,u)and one from consonants(c).
That's what I'm currently learning, What are you doing?