At the end of the day, both Jails and Docker are well documented. So even the people only interested in blindly copying and pasting commands should be able do the basics.
The real problem FreeBSD and jails face isn't with support nor accessibility but rather dumb prejudice. Much like why many Windows users think Linux is difficult. If you spend your whole time shouting that your way of doing things is the best then you're never going to give anything else a fair chance.
Docker and linux containers in general made things easier and more accessible for many. Switching from that to jails doesn't make sense.
We're not just talking about jails though. The OP was discussing systemd + containers. Switching to FreeBSD to escape systemd isn't that weird of an idea since most of the same Linux software will also run on FreeBSD. In fact I'm seriously considering switching my Debian 7 (Wheezy) servers over to FreeBSD rather than upgrade to Debian 8 (Jessie) and have deal with systemd. Anecdotally I've read other people consider switching away from Linux as well
You might like systemd and Dockers. That's great. But that's your personal preference. You shouldn't be so surprised when other people might prefer to run the same software but on a different platform.
On a tangent note: I also have a bunch of existing systemd systems - RHEL servers, ArchLinux desktops, etc - that I'm very happy with and intend to keep running Linux. I make this point just to emphasise that I'm not anti-Linux nor a FreeBSD fanboy. Just someone who's platform agnostic.
> Sure, then can use both, but why?
Why not? This isn't a sports team where you're expected to only support one product. It's quite possible to use multiple different technologies based on whatever fits a specific purpose better.
