How to check if a player is over 13 or under 13?

Hey! I'm trying to make a Roblox 2017 with topbars and stuff like that. However, one issue I ran into was checking if the player was 13+ or <13. It used to say: Account: [either 13+ or <13]

Is there a way I can check if a player is 13+ or <13? I know there's this question: https://scriptinghelpers.org/questions/27445/check-if-a-players-age-is-over-13

But FilterStringForPlayerAsync is deprecated and I'm rather confused. Thanks!