What is is 13 and 15 a big age difference?

When considering age differences, especially among younger individuals, context and intent are important. If you're talking about a 13-year-old and a 15-year-old, this typically represents a two-year age difference. Here are some points to consider:

1. Developmental Stages: At these ages, both individuals are typically within the adolescent stage of development. Adolescents undergo significant physical, emotional, and cognitive changes, and these can vary widely between individuals.

2. Peer Group: Because they might be in close proximity in terms of school grades (e.g., 8th and 10th grade in many educational systems), they may share some common interests and social groups. However, a lot can change in those two years, particularly socially and personally.

3. Maturity Levels: There can be significant differences in maturity levels, interests, and social circles. A 15-year-old may have more responsibilities, different social experiences, or interests that might not align with a 13-year-old.

4. Relationships: If you are considering a romantic context, it’s important to consider the maturity and readiness of both individuals involved. Romantic relationships between teenagers can be delicate, and when there's an age difference, power dynamics and maturity levels should be carefully considered.

5. Legal and Ethical Considerations: Some jurisdictions have laws regarding age differences between minors, especially when it pertains to romantic relationships. It’s important for individuals and their guardians to be aware of these laws to ensure that relationships are appropriate and consensual.

6. Parental and Community Guidance: Parents and guardians should guide and support their children in understanding appropriate boundaries and the importance of mutual respect in any relationship.

Ultimately, whether a two-year age difference is considered "big" can depend largely on individual circumstances and societal norms. It's always important to focus on the well-being and development of both individuals in the relationship.