I like the dimensions that you explored in this topic. Honestly i didn't even consider that. Everyone want to travel back with the knowledge and experiences they have now and never considered that as they go back in time, their mind and whatever we think we know now becomes futile because it will also go back to the way we reason things then.
We have these experiences and knowledge because we were given the gift of time. Time to advance in age and witness a lot of technological innovations. Imagine me going back to the time i was still using baby stroller with the expectation that i will run immediately. It will not work, i will still be a baby that needed help in order to survive.
This is a good read.
The question of DE-AGING is a delicate matter. Time-manipulation is a crucial discussion. I just had to consider its effect on the mind.
I like your analogy. DE-AGING is literally going backwards, really. It's much better to accept how far one has come and try to do better from there.