I think that SFI is a great opportunity for student, 18 or older to learn something new, build an online career and get money. The question is that have they enough free time and are serious to accept and continue as true the SFI is a good opportunity for them. It doesn’t matter how many years are they, 18 or older. Everyone can think about it. If he/she is patient, persistent and well working many years, he/she will strive for his/her financial independence.