Financial independence is difficult for people to accomplish due to which of the following reasons?

1. Pension plans are more available to workers today than Profit Sharing plans.
2. Saving money is a psychological challenge since people have a high marginal propensity to consume (MPC) current income.
3. People are often forced to retire before they are financially and psychologically ready for reasons such as health or being laid off.
4. Savings rates are currently high, but people don't know how to invest their money and often make poor investment decisions.