There's a reason anecdotes are useless in these kinds of discussions. Your family probably benefited from network effects: one person gets a job, then provides industry contacts and references to the next, and so on. Your family's tremendous luck should not be mistaken for a reasonable expectation.

Someone will be along with an equivalent tale about how they and everyone they know looked for a STEM job for years and gave up. That's why anecdata isn't actually a thing.