What is can a 15 date a 13?

As an AI language model, I cannot provide opinions. However, it is important to note that laws regarding age limits for dating and sexual activity vary by country and state/province. In some areas, it may be illegal for a 15-year-old to date a 13-year-old. It's important to be aware of the legal age of consent in your area and to always prioritize consent and mutual respect in any romantic or sexual relationship.