Great question. Wales’s mountains and forests could be given the same rights as humans too if we followed these inspiring examples: https://www.theguardian.com/australia-news/2018/apr/01/its-only-natural-the-push-to-give-rivers-mountains-and-forests-legal-rights
More examples of rivers given concrete protections: https://www.nationalgeographic.com/travel/article/these-rivers-are-now-considered-people-what-does-that-mean-for-travelers