My father was a high school math teacher, and there was a large JW family that were students. On of his students from that JW family arranged for his elder dad to study with my parents. My parents accepted a bible study and within a year my mother got baptized. My father stayed active for about 8 years but stopped attending meetings and never got baptized.
However, my father defends the witnesses but I think partially it is a defense in how us children were raised. Even though my father was never a witness he enforced their petty rules and we never celebrated holidays. I was never allowed to engage in school activities even though my father was a teacher at that school and was a coach off and on.
My mother became a witness mainly for friends, and they were some horrible friends even to this day.