That’s fantastic that you are breastfeeding. It’s not weird. I breastfed my eldest until he was 4 and my youngest until he was 2. The reason I stopped was because I went back to work and it didn’t suit us anymore. Weaning was easy, I just said to the children that we were stopping but we could still cuddle. I also felt pressure to stop at 12 months but I guess I am used to going against the norm. I think there is still value in breastfeeding beyond 1 year whether it be nutritional or emotional. Keep going as long as it suits the two of you.