Before thinking of monetize your blog, the first thing you should consider is quality content. If you have quality, unique content and you keep blogging for more than a year, I believe you will get significant traffic from search engines and referrals. Why traffic is so important after quality content? You can’t monetize any blog when you don’t have traffic.
Since 2010, I started to inspire my friends to start blogging as sort of investment. There were already tons of blogs out there after 2010 as it’s way too easy for anyone to create a free blog at blogger.com or wordpress.com. But, it’s never too late to take your first step.