Aloof Big Brother has these relationships to other tropes:

parents kids shares a parent with:
The Stoic
parent child
The StoicStoic Woobie
''Emotionless Girl
''Shell Shocked Veteran
''The Silent Bob
''The Spock
''Sugar And Ice Personality
''Super Stoic Shopkeeper
''The Quiet One
''Stoic Spectacles
''Not So Stoic
You'll need to Get Known if you want to add or modify these relationships.