- YouTube Channel: Create content around a specific niche that is popular among 13-year-olds.
- Handmade Crafts Store: Sell custom items on platforms like Etsy, focusing on crafting products that appeal to young teens.
- T-shirt Design: Use tools like Teespring to create designs that resonate with other 13-year-olds.
- Gardening Services: Offer lawn care or plant sales, ideal for 13-year-olds to earn extra money.
- Baking Business: Specialize in cookies, cupcakes, or breads, popular treats among young teens.
- Pet Sitting/Dog Walking: Care for neighborhood pets, perfect for responsible 13-year-olds.
- Online Tutoring: Teach subjects like math or music via Zoom, a clever business idea for young teens.
- Photography Service: Offer event or portrait photography, perfect for creative 13-year-olds.
- Tech Support: Help with basic gadget troubleshooting, ideal for tech-savvy 13-year-olds.
- Blogging: Write about interests on Medium or WordPress, letting young teens express their unique voices.

Tip
Engage in activities you enjoy and know well.
Success may vary based on individual skills and available resources.