Yes, I guess the analogy has its limits. (-: The only point I'm trying to make is that no VPN protocol is an out-of-the-box solution. And mind you, I'm talking

Yes, I guess the analogy has its limits. (-: The only point I'm trying to make is that no VPN protocol is an out-of-the-box solution. And mind you, I'm talking about the protocol, the out of the box solution "Tailscale" is not a protocol for example, it's an app with WireGuard at its core with added proprietary functionality to make it work out-of-the-box. WireGuard as a protocol is possibly the easiest to setup, IPSec/IKEv2 might be the most challenging to setup. On the other hand WireGuard has limited capabilities, IPSec/IKEv2 has a bit more. More capabilities for IPSec/IKEv2 comes with more study and practice.