1. Adoption & Users
2012: The use of Bitcoin was controlled by early adopters, developers and small-scale online retailers. Worldwide reception was very poor. There was no exchange and wallets were primarily desktop.
Adoption is adoption which is different than control. Bitcoin blockchain is decentralized and it has never been controlled by anyone especially if you use the year 2012, it is already 3 years after the launch of Bitcoin Genesis block hence Bitcoin network had good hashrate and stronger as well as more decentralized than in January 2009.
Using control here is very inaccurate.
Did you know: there were less than 1 million of wallet users at the beginning of 2012, today, the guesses are more than 100 million in the entire planet.
I have never minded about it but because you mentioned it here, I must do my search and check this information. It's not about Bitcoin addresses used and had balances but it's about HODL waves chart that shows you age distribution of Bitcoin's UTXO.
https://charts.bitbo.io/hodl-waves/