A Uthopian Vision

How can one know the religion of a person. A persons face or features don't give out The religion. It's no where written how to identify the person of a particular religion. Yeah for Sikhs we can know by there turban, but how about others. In today's world many of the Sikhs also don't wear a turban.
So yeah, it's the name that gives out for all. If we all keep a religion neutral name then will someone ever come to know your religion. Oh yes, the surname that is given to us by birth. So it's not even the name but the surname that gives us out the religion. But we can't have a neutral surname. So should we shun it totally.
But now there will be another bigger problem, if there is no surname, there would be no reservation also. Because you don't have a surname so how are we going to divide you on caste.
If we get this we will be having a country with no reservations and respect for all and no bias also. We all will be treated equally and we will have to treat all the same.
But yeah this is just a thought, not a reality.