We are considering a big family trip to Japan, but my husband is concerned that my son who has food allergies to wheat/gluten, nuts, egg (he can eat a little egg when mixed into meatloaf or similar, but not fried egg directly), sesame, will have difficulty finding food he can eat there. We prefer not to have to cook ourselves. One concern is soy sauce often has wheat in it. Opinions/Restaurant suggestions would be appreciated--we would be fine with fast-food or chain restaurants if they would be better in accommodating his food allergies. My son would be fine with eating steak or hamburgers or deli meat while there. Or do you think we should not go to Japan and chose somewhere else to travel to? We do not speak Japanese, but would write up food allergy cards and learn some key phrase, which we have done in past when we went abroad (one time) Thank you.