If you have more than one device which needs similar external access, you won't have to use a non-standard port. I have three devices at home which I'd like SS

If you have more than one device which needs similar external access, you won't have to use a non-standard port. I have three devices at home which I'd like SSH access to. Because I only have IPv4, two of them aren't on port 22, and sometimes the non-default ports I've chosen are blocked by hotel Wifi etc. Similarly, I'd like two different webservers to be available, but I can only have one on my single port 80. For the more typical user, it can mean only one person playing a particular game etc.