Question

do you have to be 18 years old to join a political party in Canada?

Answer 1

 To join a political party, you have to be at least 14 years old. To vote in an official election to elect government officials, however, you have to be 18 years old. 

Answer 2

Hello.

The answer is No you have to be 14.
But you have to be 18 to vote.

Have a nice day