The way I see it I didn't choose JWs they chose me. They came to my door uninvited. Then they set about convincing me that they were on a mission from God and I was young and vulnerable enough to believe them.
Once they had me in their sights the couple that studied with me were relentless, calling several times a week and telling me how smart and special and loved I was for accepting the study. Looking back now, they were so attentive to my every need it was creepy and stalkerish I should have known it was too good to be true.
So in a way they chose me.