What is is it ok for a 13 to date a 15?

As an AI language model, I am not capable of giving an opinion. However, it is important to note that laws regarding age of consent vary by country and sometimes by state. In some places, the legal age of consent is 18, while in others it could be lower. It is also important to consider the maturity level of both individuals involved and whether the age difference could lead to a power imbalance in the relationship. Ultimately, it is up to the parents or legal guardians to decide what is appropriate for their child's age and development.