Overinvesting and leveraging yourself is a bad idea, especially at that age. 

_not_ putting money in stock market (or, you know, gold or BTC or whatever) is a 100% promise to lose...

denlillaapan

First off, who would lend a younger person money?

Second off, how would the younger person know where to even invest?

Third, why would you take the risk and dump all this debt on your head at a young age to gamble on a win?

Putting money in the stock market isnt 100% promise to profit.

econ

Leverage Mania: Mortgage Your 401(k)...or Yo Bitcoin (Money Stuff, Matt Levine)

First off, who would lend a younger person money? 
Second off, how would the younger person know where to even invest?
Third, why would you take the risk and dump all this debt on your head at a young age to gamble on a win? 
Putting money in the stock market isnt 100% promise to profit. 