Yes, we can.
But they have to be written for advertising revenue share sites, not for upfront paying sites.
Consider…If you write 3 articles per day , that is 1000 articles a year. After a year those articles should be earning you 50cents each every month. So, if you write 1000 articles in 2010, then that will give you a $500 a month income in 2011.
If you repeat that writing pattern for 2011, 2012 and 2013, you will have an income in 2014 of $2000 a month. If you need more than $2000 a month then you just need to keep writing for a few more years, until you reach your target income, but remembrer you will have no commuting or other employment-related costs, so the income you need will be less than from a paid job.
Three articles a day is do-able by anyone committed to writing articles for a living. I know, I am doing it at the moment, and so are other InfoBarrel writers. We are talking high quality articles here of 500-1000 words with backlinks and optimised for search engines.
It’s like life insureance though, start early (say 18 years old) and you can retire to a life of luxury before you are 30. Encourage your student sons and daughters to write just one or two articles a day and help them get set up for life more than a college degree will help.