I've only ever had to kick inactive members out so there was no drama or anything ever said. I've coached a few players on what there doing wrong and in my experience most people are understanding as long as you explain why they can't do something.
My parents never liked video games so I only got my first console at 17 and that was a PS3 that by that time was already considered older. After playing a few times on it I was hooked and been gaming for the last 12 years.
My favorite F2P game has to be summoners war. I found the game about eight months ago and I've loved it since then. If anyone is looking for a great phone game that will keep you entertained for long periods of time then I recommend this one.