If YOU pay for a server it gives YOU the right to use it, nothing more. The fact that it’s public simply means you’ve not set a password in the server config. One line in a text file on the server host doesn’t automatically give every man woman and child in the World LEGAL RIGHTS to play on that server.
You pay for the right for everyone to use it. You buy it as a public server with no password on it leaving it open ON PURPOSE for anyone and everyone
If I invite someone into my home it doesn’t automatically assign them a legal right to be there, does it? If I leave the door unlocked and they wander in uninvited, it doesn’t give them a legal right to be there.
That falls under PRIVATE server. You buy your home for you and your family only… it’s hardly a public house now is it, really bad example there.
Think about what you’re saying. If I had a legal right to play on a server I could sue the owner / operator, in a Court of Law, if they denied me that right. That’s what I mean by legal rights. I’m not saying, and never have said, that you’re not at liberty to join any public server you please, just that you have no recourse in law if you’re asked to leave or kicked, for any reason, with or without warning
And who says you can’t sue the owner of the server for not letting you play ther for no reason what so ever? Just cos it hasnt been done, doesnt mean it can’t be done. If the owner of a cinema denies someone the right to use thier cinema for no reason what so ever, than person could sue them for descrimination ( i went over this already) cos they have just as much right as anyone else to use it. Sure it may be petty to sue over being denied the same rights as others to play on that public server, but it would be petty to deny them that right over no reason. If an establishment bans someone from using thier ameneties (sp?) then it’s usually for a valid reason, which comes under conduct and maner, usually found in an aggreement or set of rules. if a user doesnt adhere to this then he can be denie the right to play there. You can’t just use something open to the public and have no rights what so ever. That goes against basic human rights 
By legal rights you are breaking the law by letting anyone under 15 years of age play on your RTCW server (i dont mean yours personaly, it’s a general example). There’s no way to police this but it’s still illegal. Anyone under 15 has no rights what so ever to play on any RTCW server ( im not sure if ET kept the same age limit).

