I am gathering myself after reading your post. I can imagine your feelings, emotions and how you are feeling now. Childhood is always full of fun, because I think we had no worries. As we didn’t know yet. Now it seems difficult and different because now we are more aware. Which is neither good nor bad. Without beating around the bush, your memories are pleasant. You described the joint family in a way that I want to live there.
I would say that in a joint family, you get the chance to celebrate and enjoy every victory and special occasion together, at least up to a certain age. And yes, we are more aware now, which is probably why we value our memories so much. We understand better how precious they are and how important it is to hold on to them.