By default. Businesses shouldn't be discriminating against anyone
Let's explore that.
So if I'm in OH visiting my kids and some business tells me I have to leave my kids at home, I'm expected to make that 1,200mile trip back to SD, drop my kids off, make the 1,200mile trip back to the store, then 1,200miles back to SD to pick my kids up, and 1,200miles back to OH to continue with our visit? And no, I can't leave them at their house, because the ex is either gon or will call the cops and file a report that I'm not fulfilling visitation.
You have no idea rather or not I can leave the thing you don't like at home, and it's not your business to even worry about.
No, I can't leave my gun at home, because there are "prohibited persons" who would then have access to it. And if I'm your employee, no I can't leave my phone at home because my neighborhood is prone to burglaries (hence the aforementioned firearm). As long as I'm not, say, texting while driving a forklift, it's not your place to worry about if I have a phone or not.