It's everyone's wish, but I suppose even if we had enough knowledge about it, we wouldn't have bought it at the time. We want to go back to that time because we already know what can be achieved today, not because we have full knowledge of it and want to possess it because of that knowledge. Those who made the first bitcoin transaction or those involved in bitcoin development at that time they had a very good knowledge of bitcoin but who will hold bitcoin until now?, I think definitely not. Even satoshi was skeptical of its development, no one was sure at the time.
People can only say this because they are not on the actual situation and even if today that btc is now famous, many of us are still hesitating to buy it. Those who made the early transactions of btc do have a little knowledge in btc but they are not aware if what btc can do, that its value can grow like this.
If only they did then I don't think they will spend their btc like a normal currency but some of them are lucky to forgot access to their coins and recover it later on. Satoshi develop his own coin so he have a confidence that his creation will be known someday because it was unique and has an interesting use case and here it is now.