Wow! It is sad what some of the people said on this article.
The way I see it, one day, something affects each and every one of us. My Grandmother lived in a senior center where many people did wear diapers. One day, the very people who wrote those comments could end up having accidents--we just don't know in life, and it is important to be mindful of the needs of others.
Personally, if you want to have a public business, you should offer public restrooms.
And what about all the non Crohn's related issues for needing a restroom? If someone walks in and is nauseous, I would rather have them use the restroom than puke on the floor! Or a child who is in the beginning stages of getting potty trained? Shouldn't they have access to a restroom? Or if someone gets something in their eye and needs a mirror?