It depends on the needs and preferences of your 5-year-old. If they require a stroller for longer walks or outings, investing in one would be a good idea. However, it would help if you also considered whether your child is comfortable walking without a stroller and how frequently it will be used before making a decision. Strollers can also provide a safe and comfortable place for kids to rest or nap if necessary. Ultimately, it is up to you to decide what works best for your child and family.