it is loaded by expl3.sty on which xparse is based.

The reason is mentioned in 

texdoc expl3


/Lars Madsen
Institut for Matematik / Department of Mathematics
Aarhus Universitet / Aarhus University
Mere info: http://au.dk/daleif@imf / More information: http://au.dk/en/daleif@imf


________________________________________
From: Mailing list for the LaTeX3 project [[log in to unmask]] on behalf of Alexander Grahn [[log in to unmask]]
Sent: 17 October 2013 16:19
To: [log in to unmask]
Subject: xparse loads graphics

Consider the following example:

\documentclass{article}
\usepackage{xparse}

\begin{document}
\ifdefined\includegraphics
  \typeout{Package `graphics' was loaded.}
\fi
\end{document}

Why das xparse load graphics? What is it used for?

Alexander
--
Dr.-Ing. Alexander Grahn
Helmholtz-Zentrum Dresden-Rossendorf e. V.
Institut für Ressourcenökologie
PF 51 01 19
01314 Dresden
Allemagne

m a i l t o : A . G r a h n @ h z d r . d e
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