I think the worry is that instead of "having" to initiate interaction with other humans for the non-boredom you're praising, everyone will just open their cellp

I think the worry is that instead of "having" to initiate interaction with other humans for the non-boredom you're praising, everyone will just open their cellphone. The above solution at least allows 2 random people to interact while waiting, which counteracts the isolation tendency IMHO.