I use three cars in my family. 24, 21 and 17 years old. All work great. All have between 100k and 200k. All safe for cross country trips. All purchased 80k or later. Total price for all three, including my 17yo Suburban XLE with 80k when 11 years old= $12,800.
And I am not mechanically inclined... People have different paradigms, obviously.