Yeah. My kid is three now. And like I said I'm probably just getting it all wrong, but I actually find myself somewhat nostalgic for those days as now we have a 3-year-old with a limited vocabulary that just always wants things and needs interaction. Just constantly. And while there's certainly some reward in seeing his personality develop and he's a lot more fun at some times, it can also get really old really quick when he starts throwing tantrums every five minutes and it's unclear what exactly he wants. I think back on the baby days and remember it being kind of easy. He's crying? Well, he's either hungry, gassy, needs a diaper change, or needs to be put down for a nap. Figure it out quickly enough and the problem is resolved quickly and with little fuss.
Now there's plenty of times where I'm just pulling my hair out because every little thing seems to set him off. He's hungry. I've determined that a sandwich will satisfy him. Today, he's mad because I didn't cut the crust off. Tomorrow he'll be mad because he sees me cutting the crust off without even asking him and he didn't want me to cut the crust off.