The purpose of playing with, say three clubs, is to learn how to play golf. The rules allow a player to carry and use a maximum of 14 clubs. The rules do not require a player to carry or play with 14 clubs. If you play with one club, you're still playing golf.

So think about it, think about which clubs you would take if you only took 3. Think carefully, you will not be able to use any other club for the round. Think about what you'd do without a driver/3w or with only one club. Thinking about it is one thing, doing it is entirely different. When you do it, you actually learn a lesson. I could explain it to you and you'd probably understand what it's all about but until you try it, you can't truly know. It's something you must learn the hard way.