No! Many were hit hard when the market crashed in 08. A coworker of mine told me she lost about half of what she had put into her 401k over a few decades. This easily destroyed whatever she thought she was getting "for free" from her employers' matching contributions.

Take that 5% you were going to contribute and buy physical gold and silver instead. The 50% matching contribution, if not destroyed by another market crash could easily be destroyed by inflation. Gold and silver are a great way of protecting yourself from being flat out robbed by the Fed. The same cannot be said about a 401K.