Electrophilic substitution in case of aromatic amines takes place more readily than in benzene.

Explanation

Due to resonance, the electron pair on the N-atom of `NH_2` group is delocalized over the benzene ring. Consequently, electron density on the benzene ring increases as compared to benzene itself. In other words, aniline gets activated and electrophilic substitution occurs more readily in aniline.