Conditionally set chat declaration (#4122)

src/state/session/agent.ts

@@ -154,15 +154,18 @@ export async function createAgentAndCreateAccount(
             id: TID.nextStr(),
           },
         ])
+
+        if (getAge(birthDate) < 18) {
           await agent.api.com.atproto.repo.putRecord({
             repo: account.did,
             collection: 'chat.bsky.actor.declaration',
             rkey: 'self',
             record: {
               $type: 'chat.bsky.actor.declaration',
-            allowIncoming: getAge(birthDate) < 18 ? 'none' : 'following',
+              allowIncoming: 'none',
             },
           })
+        }
       })
     } catch (e: any) {
       logger.error(e, {