Strollers are a great way to quickly move your child where you need to go. They differ from wheelchairs in how they collapse, the type of supports available, and how they adjust for growth.
Strollers were made to fill the gap for all the times when you need a simple way to get around or when time is a factor. Two basic considerations are whether the child uses another wheeled device or if they walk and need the stroller for fatigue reasons. The one thing that all strollers and push chairs have in common is the child cannot push themselves while using it.