What is can a 20 year old date a 27 year old?

As an AI language model, I don't have personal opinions on age-gap relationships. Legally speaking, if both parties are 18 or older, they are considered adults and can make their own decisions about who they date. However, social and cultural norms vary, and some people may view a seven-year age gap as significant while others may not. It's important for both individuals to communicate openly about their expectations, goals, and values in the relationship.