in general as Tommy Hodgins said. I wont hire someone who can't help me or for whom I don't have a longterm agenda in mind.
However if it's a longterm project where I have to hire an employee for my customers, I will give it a try. If my customer is paying me for the teaching time or he is willing to have less qualified workers because he's cheap ;D ...
If it's my project and I would have to hire qualified workers, because of the time-frame. The answer is:
not for the job, but maybe in general. If I can afford it I probably would hire someone, but I wouldn't factor them into my plan and just let them do redundant things. So i can easily replace what they've built. Best case I get time, worst case I still am in my time-frame.
If they reach usable levels they can work side by side, before that they are basically interns to me.
This is basically wasting money, but I've been given a lot of chances in my life and will try to do the same for others if possible.
Personally I think logic beats language.