My first Animal Crossing was Population Growing. I remember that we had some difficulty getting it set up (we didn't have enough space on the memory card for it) so I played through that first day over and over again, each one a different town and each one named after my hometown. I must've went through that process at least 15 times before my parents finally relented and either (a) deleted some of our games from the console or (b) bought a new memory card all together.
I didn't have many friends growing up, so Animal Crossing became an extremely special game to me. I adored all of my little villagers dearly and loved when a new one was moving in. I still vividly remember that original town map and where my villagers lived, that's how much I played that town!
Sue E was a snooty, purple pig that lived by the ramp connecting the human homes to the rest of the town. She was always telling me to scram, but it just made me fonder of her because it reminded me of my aunts and grandparents. Chief lived near the beach and after pestering him for days on end, he finally started opening up to me. As a little kid, I felt SO PROUD of that.
Nosegay was the only villager to respond to my letters and I remember her being my one and only writing buddy after that. (The other villagers insulted the legibility of my handwriting and as a little kid that didn't understand how games worked...I wasn't happy, let's just go with that.
) My favorite villager though was Bessie. She lived right behind my house, making her my closest neighbor and bestest friend. I wrote her letters asking her why I couldn't take my hat off, what debt was (and why Tom Nook needed me out of it), and all the gossip I had heard in town. I planted an orchard by both of our houses so we could share. And I refused to do any work for villagers that upset her. Again, as a kid that didn't have a lot of friends growing up, Bessie was my partner in crime.
Besides forming unhealthy attachments to my villagers as a small child, I also didn't understand that paying off my debt would grant me a larger house, so I lived in squalor the entire time I played that game. (It wouldn't be until Wild World when I figured out how to make my house bigger.) I remember being envious of my villagers who had much better decorated houses than me and furiously trying to obtain the Classic furniture set.