When comparing Kali Linux vs Doudou, the Slant community recommends Kali Linux for most people. In the question“What are the best Linux distributions for desktops?” Kali Linux is ranked 37th while Doudou is ranked 51st.
Ranked in these QuestionsQuestion Ranking
Pro Standard pentest tool set
Pro Better than ParrotOS, BackBox for hacking purpose
Contains too many tools for hacking. Those tools are not already included in BackBox or ParrotOS.
Pro Live session distro used for forensics
Pro Concise "all in one" kid experience
From the pre installed apps to the interface everything about this distribution is dead simple. No necessary set up, just boot and go.
Pro Installable live cd
DouDouLinux comes as a live cd, meaning this distribution can be used on any computer not matter the OS in Live CD mode as well as installed fully onto the device depending on the hardware support.
Con Not intended to be a daily driver
This distro was written for pen testing and security work. It is not meant to be a day-to-day OS (unless that's your job).
Con Very old packages
E.G. Firefox's current version is 61 but Kali linux consists of its 52th version. Though kernel is not that old.
Con Based on an old distro
DouDou Linux is based on Debian 5, which is pretty old. So this means the software found in the distribution will be old. This also means the hardware support will be lacking compared to newer based distros. So for those that do want to install it would be a good idea to make sure the hardware is supported by Debian 5 and DouDou Linux.