I don't think this really counts as being an "ex OF fan" but I remember somehow liking Rangers as a pre-schooler. This appears to have changed rapidly to Celtic as my brother and I became friendly with the kids next door who, as Catholics, supported that team. Obviously at that age I had no idea about the baggage. It was just a game I knew little about.
At about 5-6 years old I became a 'Well fan. I really cannot remember why, it was so long ago. I have a small suspicion it may have been down to simply liking the unusual colours. Blues, reds and greens are commonplace. Claret and Amber showed some imagination . It wasn't down to my dad as he didn't really support anyone, concentrating on helping run Lanark Utd.
My mate from next door also switched from Celtic to 'Well and continues to do so to this day. I met him for the first time in decades a few months ago in the pub he runs in Lanark which has a large 'Well crest on the back wall . Unfortunately, my brother never followed me on the road to salvation and continues to support Celtic. Though, on the plus side, being a nominal proddie at least shows it has nothing to do with the sectarian nonsense.
Over 40 years of following 'Well has been a roller coaster to say the least, with far more downs than ups, but I've never regretted it. Watching the ugly Punch and Judy show that is the OF develop over time only confirmed I'd made the right decision all those years ago ... even if it was originally only down to the unusual colours .