If it does happen, then the amount of Bitcoin in circulation will drop that much and hence the prices will go up some more. I think this is one of the problems with bitcoin, throughout the lifetime of Bitcoins, there will be instances when a wallet will be lost with some Bitcoins in there. It doesn't matter if it's a million bitcoins or just one Satoshi. If we lost one billion wallets with one Satoshi, then the whole bitcoin network lost 10 BTC already. What if we lose this amount every year? Then, in turn, we lose 10 BTC a year and it will stack up till the end of time. Hence having only a finite amount of Bitcoins then losing Bitcoins every year because it is lost, then the amount of bitcoins circulating will eventually actually drop.
This is what practically may happen if someone has few satoshi in his account he'll not mind to give information to his family members for just one satoshi and his family members will also not bother to get those few satoshi.
if million of wallets every year go inactive and those have few satoshi each than big amount of bitcoin is going out of circulation.
And this will keep accumulating every year.
If it does accumulate, we would have a gigantic amount of Bitcoins stuck in inactive wallets. What will happen if there has been indeed one million bitcoins that get stuck in those wallets? Then the amount of bitcoins that circulate would go down drastically, and in the end, prices will go up. This might be a great opportunity for some, but it would really be hard for others to transact Bitcoin if it cost so high. Especially when the transaction fees of miners stays the same. Imagine if the prices go to $1,000,000 per bitcoin and the transaction fees stay an average of 0.0002
BTC to be confirmed on the next block, that would cost us $200 just to send a transaction over to the blockchain.