I doubt people haven’t updated their security model or consolidated UTXOs in 10 years
Lost coins
Discussion
This guy kept 2 thousand BTC in public key, he recently sold it.
https://mempool.space/tx/b6539dbafcc644a37d320ba572a593dbce7184d8d50ac03b67b9ab96802c5ed0
It’s rare tho. Most of those coins are lost