D.K.
Nope! My kids did just fine without it. If you're concerned, you could use another free-type of detergent. I use the All free detergent & plenty o' fabric softener & my little guy has been fine. For my daughter I never switched to dreft, same with my oldest. I think it's good it exists for the kiddos who have really sensitive skin but most people don't need that extreme.
D.