Not changing Bitcoin core because it's risky and Bitcoin is a store of value first is a valid argument, however one of the core principles of Bitcoin is holding your own keys, with the current state of Bitcoin, everyone cannot hold their own keys because it doesn't scale to everyone in a non-custodial way.
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Interesting. Please explain what you mean.
Holding your own keys and holding Bitcoin means you own utxos. A billion people can't own utxos, it mathematically isn't possible.
I guess I don’t understand. If bitcoin gets to billions of users then sats would be the standard for money and payments. There many trillions of sats.
That's not how Bitcoin works. You own utxos on chain and everyone can't own one.
Each wallet would have utxos. Anyone can have a wallet. Are you saying there is a limit to the amount of wallets?
No. There are limited numbers of utxos. Please read this posted link.
