Remember that in other fields like medicine, finance, academia, and law, getting in involves 5+ years of hoop jumping and commitment signaling that have nothing to do with the final job.
Genuinely curious, knowing nothing about this field: does, for example a neurosurgeon with 15 year of experience, when looking for a new place to work, have to pass surgery "challenges", like doing a lumbar puncture in 15 min on a fake body to prove his experience?
No, but the medical profession has a ridiculous amount of gatekeeping, so you can't become a neurosurgeon with 15 years of experience in the first place (there are maybe a few thousand worldwide). On the other hand anyone with a computer and a curious mind is a software engineer.