"Lui starebbe meglio senza tutti gli interventi."

Translation: He would be better off without all the operations.

[BajMaj]

Why ''off'' is needed in the english sentence? Shouldn't it be ''He would be better without all the operations''?

[Heineccius]

"Better off" is a phrase that implies a person's STATUS is better (for example, having more money or being healthier). I think you could always say "better" instead of "better off" and still be correct - saying "better off" is just a little more specific about what "type" of better the person is.

[dnovinc]

Which one is more likely to be used by medical staff "interventi" or "operazioni" ?

[markandrew]

One is a subset of the other

[JozefTimme]

Which one is a subset of which other one?