Nonsense. For every couple on a million dollar catamaran sailing around the world there's someone in a cheap boat they've fixed up themselves.

Check out Wind Hippie Sailing on YouTube for a young woman sailing her boat in the pacific (She's probably spent less than many people do on a car) Or Sam Holmes - sailing the North Atlantic. Yes they have patreon funding - but many others do by saving money from working before or while they're travelling.

https://www.youtube.com/watch?v=2JPc1AxRSWA https://www.youtube.com/c/samholmessailing