After a long while, upgraded from Xubuntu 16.04 LTS to Xubuntu 18.04 LTS and was in for a surprise. No encrypted home folder. Support for this was dropped as ecryptfs-utils was no more maintained by it’s maintainer.
However, fret not. Encrypted home folders can still be created as below. Make sure you take a backup of your system first.
Open a Linux Terminal window.
Install the ecryptfs-utils and cryptsetup packages, or whatever is available of them at this time:
sudo apt-get install ecryptfs-utils cryptsetup <enter>
Add user1 with encrypted home folder:
sudo adduser --encrypt-home user1 <enter>
Add user1 to the sudo group, so that it is able to perform administrative tasks:
sudo usermod -aG sudo user1 <enter>
Lastly, if you do not want the original user0 you created, you can remove it by:
sudo deluser user0 sudo <enter>
sudo userdel -r user0 <enter>
sudo find / -user0 1000 -print <enter>