I don't always blame those who did not invest in Bitcoin, some are not inclined to internet investment, while others who can risk it might not have the needed trust in it, and you can't blame them for that, it takes time.

Many have also been scammed in the name of Bitcoin, with Ponzi, direct fraud and even by those who introduced it to them, and their mentors. Not everybody is lucky to follow the right channel and I tell you today that my adoption of Bitcoin was late because of my scepticism then and I would even have been scammed by all those useless centralised wallets like freewallet.org.

Thanks to Bitcointalk. So we should continue to encourage those who are in this category, guide them and furnish them with the needed resources to read. With time, and also with how Bitcoin has proven itself to be a worthy investment, they will be convinced and invest eventually.