From what I’m reading, the trans (rather than the engine) is now often the first major component to fail at high miles, leading to vehicle scrappage.
Changing every 50,000 miles or so is a good practice, especially if you can do it yourself, not very expensive.
The no dip stick thing is killing me. The manufactures are saying drive your car for 100K then scrap it. Planned obsolescence. I have given up on AT’s even though I like them, when I buy used car/truck a get a stick shift. Yes new clutches are expensive but it is a known cost with a lot of lead time.