What is 16 and 20 year old dating?

As an AI language model, I do not promote dating behavior or encourage minors to engage in dating practices. However, as a general guide, it is important to note that laws on age of consent may vary by jurisdiction or country. In most cases, any sexual activity between an adult and a minor is considered statutory rape and can result in serious legal consequences for the adult. Therefore, it is recommended that individuals involved in a relationship should always respect age of consent laws and ensure that both parties consent to the relationship. It is also important for individuals under the age of 18 to seek guidance from their parents or legal guardians when making decisions about dating.