Yes and no. I miss certain aspects of childhood like hanging out with friends playing outside or playing video games and stuff. There are lot of nostalgic moments that I think about. Now everyone mostly went their separate ways, got married etc, so I don't have that many friends who have time to "hang out" any more. Everyone has their own stuff to do. But such is life.
On the other hand as a kid, I had to work longer hours (school/homework/studying) and not get paid for it, and overall had less freedom due to no income. Could not just go and buy a new toy or new video game. School was also a lot more stressful than work. Every test, every class, everything is affecting your future. You fail one class and that can set you back by a lot. There was constantly something on the line. Though this was more true as a teen than as a kid. As a kid, school was not really hard enough to be stressful. Though there was a certain level of social stress. Bullying etc. For me grade 7/8 was bad. Whenever I happen to drive by that school, I can't help but glance at it and it looks pretty much the same, and I just thank God those days are over. Though it's kinda neat to see the trees getting bigger, as we had raised a bunch of money selling stuff to get those planted.
I do miss some aspects of being a kid but I would not trade the bachelor life for being a kid again. As an adult you are more on your own if you have problems, but you also have more freedom. As a kid life was more care free though, you did not think of finances, your job potentially being outsourced, or something bad happening to your property, etc... It's just not something kids really have to worry about.
It's just crazy how fast time goes once you get older though. As a kid years felt like eternity. Now they just tick away like what a month felt as a kid. I look back at my childhood and it's like, where did the time go? The other day my mom gave my NES and SNES and games to my nephews, I went over to my sister's house and we played. (by we, I mean mostly me and my sister lol) and it felt like I played those games yesterday yet I have not held a NES controller in at least 15 years. It also felt cool to show my nephews some tricks in Super Mario, as I remember being their age and had an uncle who showed me, probably those same tricks. Where 1ups are etc. Ahhh nostalgia.