As our client you have an option to include a Welcome Page for new hires. When users receive the Welcome email they would click on the link to create their password. Once they create the password and login they will be redirected to the Welcome Page where they will need to finish creating their profile which may include their Preferred Language and other required fields.
If you would like to discuss the Welcome Page and what fields to include as well as the required fields you would need to contact your CX representative who will be happy to work with you.