Yes. Bitcoins don't lose validity as long as you keep the private keys safe.
But it is quite possible that some of the huge bitcoin stashes from early mining are inaccessible due to lost wallets - people did not be particularly careful with their wallets when bitcoins were worth basically nothing.
Onkel Paul
. Bitcoin is lifetime to use,as long as you have your wallet password or exchange that you entrusted the coins this bitcoins will remain as yours for ever..
I think theres a highschool drop oup whos have this same past
https://www.cnbc.com/2017/06/20/bitcoin-millionaire-erik-finman-says-going-to-college-isnt-worth-it.htmlCheck this link and you'll see how great bitcoin is
I have watched that story and the video that tells the boy story and its amazing,but what im disappointment is whe the boy refused to study because he become a millionaire from holding bitcoins,if were the parent i wil now let my son do it just because of gaining own money,study is the treasure from parents that cant be taken from us