Magento 2 is quite advanced and has a lot of new and advanced features which encourages the users to migrate their Magento 1 store to Magento 2. Many users and store owners are migrating their Magento 1 store to Magento 2 because Magento will stop supporting Magento 1 after June 2020. This is also one of the major reasons for Magento 1 to Magento 2 migration.