To be honest I barely tolerate young people! I am in my late 30s and every time I interview someone in their mid 20 I wonder what happened to the education system… give me a 40yo or 50yo instead of 10 20yo any time!
I do think some companies are starting to see this. I interviewed with two young (<25) people yesterday and she said they're /too young/ and all the "experienced" people have left so they're now slow and have issues with tech design and debt so they're trying to backfill experienced people now. It was pretty clear what she meant and why I was being interviewed.
I see this as well which is wonderful for us late 30, mid 40 people. But I don't think they mean 60 when they say experienced.
This isn't unique to tech btw ...ageism is all over the place.