I've seen it work.
I agree. Too large of an age difference is heading for disaster.
I' think that's a bit too general as can't a mature 7 year old able to change a diaper? And I've seen a number of relationships that worked and they were 7 years or more apart.
Also I think the age range changes as you get old... the older a person is, the older the dating range should be.
Honestly it is not my place to say what could or couldn't work between two people...that is their business to work out.
Adult diapers are sometimes needed, you should never divorce at 80 over something so trivial.
I wiped my kids ass till he could do it on his own.....I tougned his mothers ass during sex...this shit means nothing to me