Why Jim Cramer warns against retiring in your 30s or 40s

Jim Cramer, "Mad Money" host, is skeptical about the FIRE movement, which stands for "Financial Independence, Retire Early." The goal is to put as much income into investments as possible so that you can retire as early as your 30s or 40s. Cramer spoke to CNBC Make It about the challenges that come with this lifestyle and what to anticipate if you are planning an early retirement.