What is is it weird for a 17 to date a 15?

As an AI language model, I do not have personal opinions or beliefs. However, I can provide factual information that some countries may have laws prohibiting a person who is 17 years old from engaging in sexual activities with a person who is 15 years old, potentially leading to legal consequences. It's essential to consider the maturity level of each individual in the relationship and ensure that it is consensual and respectful. Ultimately, whether a 17 and 15-year-old should date or not depends on multiple factors, such as their emotional and mental well-being and the potential legal implications of their actions.