Comic Sans is a font for younger kids, Times New Roman is a formal font and all fonts have their own personality. Comic Sans should be used for kids, not for formal letters. Times New Roman should be used for formal letters, not kids. I really like the font Bradley Hand ITC. It would be more of a kid font, than a formal letter font. I think it's a really unique handwriting. Bradley Hand ITC is a font that should be used for kids invites, kids assignments, or anything kid related.