How common is it to be baptized as a baby but still turn out atheist in the end?

One of my relatives (older member in the family) insisted why I didn't have a religious wedding if I was baptized as Catholic. Babies can't speak nor decide so I guess it doesn't count. Though grandma said I'm still Catholic by default since it's a permanent mark. Though that's only by title and the documents but I don't practice it.

I only said we weren't too much into religion. After insisting so much, she asked if we're atheists and I said yes. Then we changed the topic. I wonder how often that this happens; someone gets baptized as a baby but they end up not following tradition nor religion at all... and instead identify themselves as atheists.

Would be I one of these few cases or is this common?

How common is it to be baptized as a baby but still turn out atheist in the end?
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