i think it is, because in the year 2011 you can buy a Bitcoin for only 4$ and if you buy 100 Bitcoin before and you still have it now , then you are a millionaire , and if you buy bitcoin now it's late, because the price of BTC now is expensive
No you are not late, we are just early users of bitcoin. Although its 2018 and bitcoin starts at 2009 it is not too late to invest in bitcoin because atleast now you are starting to make you own money with the use of bitcoin.