Everybody always has the right to choose their religion or not to be religious in civilized countries, as they should. If freedom is valued then children should always have the right to choose their religion, no matter how young. I wouldn't say a child is of any religion until they can think well enough to understand their religion or lack thereof. For example I was born into a catholic family, and baptized, but I was never truly a Christian. I believed in God, but I didn't understand what I believed. As soon as I had some awareness I stopped believing.

I agree , if a child does not wish to embrace the parents religious beliefs they should be left alone to follow their own path .

True

The question is what at what age? Clearly after they're adults they can do whatever they want, but then technically they're not children choosing anymore, they're adults.

I think it should vary with the child and the family. If a 5 year old from a Christian family says they want to practice Voodoo I understand the parents saying no you can't. If a 15 year old from a Christian family says they really believe in Buddhism instead and the kid can make several really good arguments for why then I would think it cruel to deny them that freedom of choice.

I feel as though after a child can properly differentiate between what they feel is right and wrong on a religious level, then they should be able to chose what religion they wish to follow.

The proper way to raise a child in religion is to do what I did. We went to the library and researched every religion. Her and I sat and talked about what each believed and didnt believe. Then I took her to those churches so she could see for herself how they worshiped and operated. She was then free to make up her own mind.