I want to bring back the carefree childhood

In this world, change is inevitable. It's just a matter of time. But the only difference is that some changes happen very fast and some changes take time and sometimes we may not understand how situations or things change slowly. Again, some changes are positive and there are some changes which we didn't want but it actually happened. In case of negative changes, we always wish to bring back the old version. What if I have the power to bring back something that is extinct? It can be animal, habit or technology or something else? What would you choose to bring back if you had the power?

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Some people wish to bring back their grandparents or something else like that and in my case, I also love to meet my grandfather as I never met him anytime. He died two months ago before I came to this world. He was a decent person according to the opinion of others and I think it would be great if I got him in my childhood time. Whatever, I think I was not fated to meet him and that's why he left before I came here. I really want to meet him, but I think I won't use my power to bring him to life because it will be against the law of nature and I don't want to do something like that. I think my grandfather won't like it also.

I think I should bring back something that actually can keep me happiness. I guess most of us are generally happy when we are children. In that time our thoughts were genuine and except thinking about playing. I think there wasn't any other thing in our mind. We are so carefree that we had nothing to worry about. When we have no responsibility to carry and we have nothing to worry about, we can be genuinely happy. I just feel that it will be great if I can be happy all the time like I was in my childhood time. I'm quite sure many of you also want to bring that kind of moment if it's possible.

I believe that in the present world I'm facing quite a busy life, and I'm quite satisfied with my current life. It is also true that at the present time I don't have too many things to worry about, but I feel that still I have a lot of thoughts in my mind. Even if I don't need to think about anything, I need to think at least about my future and such kinds of thoughts are very reasonable and I need to plan for my future also, even if there exist uncertainty. I just wish to think about life in that way. I am not thinking about being reckless about life. Is it yours? I think just keeping myself in a cheer mode like my childhood time, in maximum time, is my only goal and I should remain serious only for certain time to deal with my current responsibilities.