The house I live in is 70 years old, has real hardwood floors, only had to refinish them once and that was because we were adding on to the house and thought it would be a good time to do it.
Don't think any laminate would make it 70 years, especially with the moisture we have in south Louisiana.
Yes very doubtful. We have already replaced many laminate floors that are only 5 years old or less because of bubbles and delamination. As soon as the salesmen starting bringing that stuff in the store years back I told them all that the flooring biz had made a major move into the "planned obsolescence" business model.
On the other hand back in the 70s my Dad was hired to fix some of the mosaic tiles in the Great Seal of OHIO floor mosaic in the Chillicothe courthouse. Which was Ohio's first State house in 1803. As far as I know that tile floor is STILL there and working fine after dad fixed those few tiles that needed replaced.