Yes, highly unethical :P That aside, it's a good thought. Thanks for joining the conversation @sishirbaid!
We do know that our brains/neural networks develop as we grow, and we know a good bit about this developmental process. But, there are many difficulties when it comes to memory. Our current technology does not have the resolution to see the relevant changes. If we did, it would still be very difficult and require a deeper understanding than we have to link specific activity causally to a specific experience/memory or vice-versa.