Sailing around the world costs money, but you can learn about other places through other people sharing their experiences on tiktok. There are livestreams teaching language, where you can get a much more personalized teaching and your questions answered without judgement for interrupting, there are carpenters sharing useful tricks, and showing how to build things for yourself. There are livestreams showing how to operate a crane at a shipping port, and what that career is like. TikTok has a lot more than the dancing, meowing, and giggling, although if that's what you watch a lot of and interact with, it will happily give you only that, but that's a user problem, not a platform problem.