Now that my son is in preschool, we've been going to a lot more birthday parties. I am more of a "bake some cupcakes, play pass the parcel and let the kids run around in the garden" kind of party-mom, but that is definitely not the case with the rest of his classmates' parents! I'm pretty exhausted by the trend of making everything into a huge celebration, mostly because I don't have the time, energy, or money, but also because I feel like when everything's a celebration, then nothing is. I was obsessed with Christmas when I was growing up because it was so special.
On the other hand, if you love celebrating Pancake Day and St Patrick's Day and Arbor Day, more power to you! Whatever makes your kids (and you!) happy!