20 + 7 = 27
According to this rule, the youngest person you might consider dating is 27 years old.
However, it's important to remember that this is just a guideline, not a strict rule. Age is only one factor to consider in a relationship, and the most crucial aspect is the mutual consent and comfort of both individuals involved. What matters most is that both partners are consenting adults and are on the same page regarding their relationship's dynamics and future.
It's essential to communicate openly and honestly with any potential partner about your expectations, desires, and boundaries to ensure a healthy and respectful relationship. Remember that judgments about age differences can vary widely, and societal norms may continue to evolve, so it's vital to focus on the connection and compatibility you have with your partner rather than just age.