Lost coins are not actually lost, its value would be transferred to other people that still have access to their bitcoin, as the bitcoin that are still accessible become more scarce.
Satoshi once said that.😉
I don't remember the quote/unquote though.
Whenever you access your wallet, a 10 year timer will begin/reset. If the wallet is not accessed again in 10 years the coins will go back to the mine. Keep in mind, i never mentioned activity (sending or receiving), simply accessing, or logging on.
OMG, you are telling me to set a timer or someday I will check my wallet and will see someone took my coins! Never going to happen. You are surely not the first one telling such stupid idea. I read the same somewhere long ago.