They're outlawed in some countries, notably in Europe.
EU rules presume pre-dispute arbitration clauses in consumer contracts are invalid. France and Sweden completely prohibit consumer arbitration in certain cases. Germany won't enforce a consumer arbitration clause unless it's in a separate, signed document or part of a fully-notarised contract.
Lots of information available at https://www.hausfeld.com/news-press/mandatory-arbitration-in....