'Why invest in educating someone if they are going to quit in one year or so?'

'What happens if you don't invest in them, and they decide to stay?' - Quote from a management guru, can't remember his/her name

But what if the company's plan is to exit or bust in a few years? There's not much of a future for them either way..

Once you apply, it's usually - 'We're looking for someone with more experience right now' or 'Experience of 10 years with React'

If you even get a reply in the first place.