I think the question should be this:  Why should somebody not join the SDA? That list would be short.  

For us members the organisers are there to help us if we have problems to work through it with the management, then I know exactly what my rights are and that they are being protected  

It's the protection of your job, it makes sense to be protected  

I call the union for handling problems if I ever have any in my workplace, they always respond in a fast and timely manner to help resolve them!  

I think the question should be this:  Why should somebody not join the SDA? That list would be short.  

For us members the organisers are there to help us if we have problems to work through it with the management, then I know exactly what my rights are and that they are being protected  

It's the protection of your job, it makes sense to be protected  

I call the union for handling problems if I ever have any in my workplace, they always respond in a fast and timely manner to help resolve them!