Cool that you're posting this here, but I don't think this is the right place. Most people who come here already know the advantages of bitcoin.
You probably should post it on a 'regular' forum where people don't know about bitcoin. It's better to spread awareness there then here.
Telling your friends/family also works better than posting here.
You are correct but at the same time if someone looks for that in google he may get a link to his post and then that persons is going to discover why bitcoin is better than cash but it will also discover this forum which is one of the cornerstones of bitcoin, since even the founder satoshi nakamoto used to have an account in this forum.