How to say "The grass is always greener on the other side" in Spanish (Día 128)

The video tutorial explains the idiomatic expression 'the grass is always greener on the other side', which is used to describe the tendency of people to think others have it better. The instructor provides a Spanish equivalent, 'Nadia esta con tento con su suerte', meaning no one is happy with their luck. The video concludes with an invitation for viewers to share other ways to express this idea in the comments.

In what context do people typically use the expression mentioned in the text?

What does the phrase 'the grass is always greener on the other side' imply?

What is the Spanish equivalent of the phrase discussed in the text?

How is the idiomatic expression related to people's perception of their own luck?

What does the speaker suggest about the nature of happiness in relation to luck?