Just ask your friend what all websites/web applications does he use on a daily basis, there should be something from open source out of that set. I believe many

Just ask your friend what all websites/web applications does he use on a daily basis, there should be something from open source out of that set. I believe many websites make money using open source technologies and many companies/startups release their technologies as open source helping others benefit out of it. Current tech scene would never have improved without open source community and collaboration.