I use this module called ProfieService, which is very helpful for saving/loading/editing player data, It does all the heavylifting and gives you any functions you might need to use in scripts
And instead of roblox’s LocalizationService, I use a module called CountryService because it is WAY easier to use and simpler, It basically creates it’s own data type called “Country” which contains the name, flag emoji, 2-letter code, and even an image id for the country’s flag, It’s very impressive.