Yes, traditional teen entry-level jobs such as food service and busy customer service are sometimes not the right fit. Some alternatives I have seen work better include the following: pet shops (both chain and independent), helper at a dog boarding facility, hardware stores, construction (if the sound does not bother them), landscaping (ditto on the sound), specialty/hobby shops (especially if it aligns with their interests), stores such as Staples and Office Max etc that have a bit of a technical component.
For some reason, I have seen kids “find their people” especially at chain pet shops (Petco etc) maybe because they are big enough to have multiple workers, but not too many.