Comment 2 for bug 1281377

This matters alot and I'll outline why.

1. The Linux Foundation "Filesystem Hierarchy Standard", chapter 3.8. /home : User home directories (optional)

"The setup will differ from host to
host. Therefore, no program should rely on this location."

Source: https://refspecs.linuxfoundation.org/FHS_2.3/fhs-2.3.pdf

2. When using networked home directories, such as NFS along with automounter, the /home/ubuntu directory will be mounted over and effectively locking the ubuntu user out from the system.
I run into this problem and have to make cloud-init move the ubuntu user home to /lhome/ubuntu to allow for NFS home directories.

3. When people want to use "juju" but fiercefully want to stay with their "centos" distro. Forcing them to add "ubuntu" to the system for stuff like "juju ssh 0" and the like just scares these people away from juju.