I was 13. It was the 80s. Everyone I knew was getting baptised in their teens back then.
At the ARC Terry O'Brien was asked if JW baptise children and he said no. He said they only baptise those close to adulthood. Just a few weeks ago a relative was all smiles and "oh how wonderful" telling me about a young boy of 9 getting baptised with his mother.
I regret it so much that I made that choice without ever asking the important questions which never occurred to me to ask until now in my 40s.