If the crash lasts for years it should be GREAT for younger people.  Unless, of course, they lose their job.  But in terms of investing, what's the first part of "buy low, sell high?"  Buy low.  So keep buying.  Younger people who are putting their money into the market on a steady basis should be very happy when the market corrects or crashes. 

The market crashes all the time.  Since 1950, the stock market has gone down 10% 38 times!  And it's gone down 20% 9 times.  And people get scared and fail the most basic test of investing- can you withstand corrections. 

If you like to buy and sell, buy and sell, a bear market can wipe you out.  If you like to buy and hold, a bear market can be very very good for you.  Buy low, sell high.  

Stock market corrections and crashes are a feature, not a bug.

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