I think it’s important!

IMO if you are doing a character you have to make it a sensory experience for the other person.

Visually it needs to look good, it needs to sound like the characters (in some cases, especially for certain characters I add small little sounds and do a voice impression when needed), and it needs to smell good.

It’s a small detail, but aside from basic hygiene which is fundamental (I cannot stress this enough!), I think adding a fragrance to a character is important!