Why shouldn’t we buy this…take 2

So unfortunately this was posted today and already sold. Our used car market still hasn’t returned to pre-Covid…

Would this have been a good option for my family friend’s daughter?

Budget $6k. Nothing over 150k miles. Reliability over literally everything. It could have roll up windows or lack AC. We don’t care. We live in the northeast so we inspecting for rust. We’ve also budgeted to have an independent mechanic inspect prior to purchase.