Riddle by Anthony D. Section 1

I am designed for a single purpose.

However sometimes people use me as a display of fashion.

I can be a machine or electrical.

 I have many brothers and cousins but we are all similar in a way.

At times I am misleading. 

However it is not my fault, it is that of my owner.

If you disregard me then you will most likely end up in trouble,

for I am not forgiving.

And now I ask you this

Do you know who I am?