Miles are 100% pointless. But judging from every other question on YA about miles, it seems like no one has any common sense.
Put it this way.
At 50 years old, are you healthy, or not?
You'd say it depends on the person and their lifestyle, right?
Same with a car. Is it 210,000 miles of immaculate care and maintenance?
Or is it 210,000 miles of driving it into the ground?
The miles themselves don't matter at all. It's how it got those miles, that matters.
I have two cars with 300k miles on them, and they run better than my dad's car that has 55,000 miles on it. Because he's an idiot, and doesn't service his car regularly.
So, ignore the mileage. Ask for service records. If they can provide those, you're fine.