I want to give the answer to this question from my personal experience. Sfi is good for all those who are good learners.
sfi is very good who are dedicated towards their goal. In my opinion 18+ is a very good age to start learning about a business.
But the question is why sfi?
1.The business in sfi can be started at a very minimal investment.
2.There is a very less chance of losses in sfi.
3.In sfi one can learn a lot while working.