A 7-year-old may be too big for a stroller, especially considering the typical weight limit and the intended use of different stroller types. Most strollers, including the kid strollers over 50 pounds, are designed for younger children who may still need assistance with mobility or longer outings. While some strollers can accommodate older children based on the weight limit, they are often specialized, such as jogger strollers or stroller wagons like the Evenflo Pivot Xplore. Additionally, compact strollers or the umbrella best stroller are designed for lighter weight and more limited storage needs, making them less suitable for big kids. Therefore, I think a 7-year-old may find the stroller uncomfortable or impractical due to size and weight considerations. It's important to consider your child's and family's specific needs and preferences when determining if a stroller is appropriate for your older child.