Can't get into Realms on Minecraft: Java Edition? Due to GDPR (http://minecraft.net/privacy/gdpr/ ) users under the age of 16 need parental consent to play on Realms. To set up parental consent on an account, visit http://minecraft.net/update-account .
If you have not already, please visit https://bugs.mojang.com/secure/Dashboard.jspa … and report it so that the developers can see. If you have, then thank you! ^CW