No. I grew up irreligiously in a agnostic home. I was christened as a baby but it was the 1970s and it was more to do with tradition than religious conviction.
My daughter and DBs kids aren't christened. For me, I've let DD figure out what to believe for herself. She's an adult now, and says she's mostly an atheist.
I dabbled in atheist fundamentalism in my twenties but that was horrible towards believers which I couldn't stomach. Extreme atheism seemed to me, in the end, to be as bad as organised religion. Don't get me started on the Spaghetti Monster. People actually believe he exists, thus cancelling out the whole point of the idea of him in the first place. (The internet had a huge influence on me during this time, especially when ISIS was at its height). I also joined the Humanists for a time until they got way too political, and later, went back on their principle that answers can be found in science (TWAW stance).
So now I am very much a staunch atheist who doesn't believe in anything metaphysical at all. In recent years I've seen parallels between nature-observed paganism and modern-day scientific discovery, and I believe that the Ancients were the scientists of their time. They made a lot more sense than the imported idea of a God in the sky.
I respect people who do believe, and I enjoy listening to them argue their standpoint. I can hold my own in these discussions too. I think religion (and paganism of the pre-Christian era in Britain) is an excellent way to explain how the world works when there are gaps in scientific knowledge. However, I would rather the gaps are investigated by people more qualified than me! I love religious buildings for their art and place in history but reject the doctrine cited within.
Some cultural practices from some faiths are so humanist-coded they are more humanist than the Humanists. The Muslim devotion to charity, for example. The "open-table", sharing of food and equality stance from the Sikh religion is another example.
Do yes, although my belief that God doesn't exist remains from when I was a teenager, my attitude towards people with different outlooks has evolved with age.