Brake system fluid flush & power steering fluid exchange

What is your question?

I recently had my brake fluid flushed and was charged $99($35 for parts & $64 for labor) and the power steering fluid exchanged for $120($75 for parts and $45 for labor).I was informed that since the fluids had never been changed that they degrade and should be changed.Was I correctly advised? Was I fairly charged? Please advise. Thanks, Louis