Dear Mr Woods,
I am 44 so I am able to give you an answer from my perspective. When you are mature, you probably live a less stressful life, you may be retired and have a lot of free time. It is a great opportunity and a challenge to earn a nice extra income that offers you a possibility to lead a more comfortable life. Your own success is always the best reference so the best way is to lead by your own example. I wish you a lot of great time at SFI!