Yes, adults can learn languages and skills faster than children when using proper methodology. While children take years to speak a language reasonably well, adults with the right approach can become fluent in weeks or learn basics in days.

The belief that children learn faster than adults is false when methodology is controlled. Children take years to reach basic fluency; adults using deliberate learning methods can achieve the same level in weeks. The advantage of childhood learning is not neurological but motivational and immersive — which adults can replicate.