To be fair, an RSVP is considered a good idea. If you let them know you’re coming, when you arrive, you will already be taken care of.

Arriving unannounced, you might have to put up with a lack of support for a while before the host finally gets their shit together.

So while I support people’s right to emigrate and immigrate, I also support the whole idea of RSVPing for the sake of making it as painless as possible for everybody.