Random Riddle: The Sidekick

I am always the sidekick
Never the main attraction

I am always the sidekick
But give you satisfaction

Accepted as is by the minority
As most feel the need to dress me

I can be topped in red, white, or clear
Either straight or curly is how I appear

Very popular in places that are fast
Enjoyed so much that not long do I last

What am I?
 

Random Riddle: The Sidekick