law: Trade Union Act, 1926 
  21. Rights of minors to membership of trade unions 
  Any person who has attained the age of fifteen years may be a
  
  member of a registered trade union subject to any rules of the trade union to
  
  the contrary, and may, subject as aforesaid, enjoy all the rights of a member
  
  and execute all instruments and give all acquaintances necessary to be executed
  
  or given under the rules: