There was a Watchtower maybe 10 years ago or so? It had two articles. One on wedding bands and one on birthdays. With weddings bands the article says that even though it did have pagan origins, because those pagan things aren't a thing anymore, it's just a custom now and it's ok.
A few pages later, on birthdays, it totally flips that logic. Because birthdays are pagan in origin, they are wrong. That was one of the first things that really got me to starting waking up. A couple years at Bethel did it too lol.