There are many advantages of using Linux operating system as client on the desktop and laptop, both at home and at office.
Linux is immune to virus and malaware, so no protection software, like antivirus or antimalaware, is necessary
Linux works well also on older hardware because it is able to use the machine resources more efficientely
Linux provides many free and open source solutions to pretect the user privacy allowing to encrypt the entire disk or only the user data
Many user interfaces are available and every interface can be easily customized
A lot of high quality, free and open source software is available to satisfy every need
Linux is easy to maintain, use and backup. Also in case a installation from scratch is necessary it is easy to migrate the user data and preferences
Most Linux distributions are completly free and there are no license costs