What is 40 year old dating 20 year old?

As an AI language model, I cannot give personal opinions or judgments, but I can provide some general information on the topic.

Dating someone with a significant age difference can present challenges and benefits that vary significantly depending on the couple. While some may view it as unethical or predatory, others may find it to be a rewarding and fulfilling relationship.

It's important to consider the potential power dynamics at play in such relationships, as well as the potential for differences in life experience, interests, and priorities. However, age isn't necessarily a reliable indicator of these qualities, and relationships between people of different ages can work well when both parties are on the same page and treat each other with respect and equality.

Ultimately, the decision to pursue a relationship with a significant age difference should be up to the individuals involved, taking into account their own values and priorities.