Google made an announcement about Adsense and the withdrawal method to be specific, it said that it will stop sending payments via Western Union but payment methods that are available in your country (Youtuber's country) instead, new accounts won't be able to choose it as a payment method and the previous accounts will be still receiving their payments via Western Union till 2021, but after that, they will stop receiving money via Western Union and will be pushed to receive money in the available methods in their country.