In reply to nutme:
> If you don't have climbing partner who wants to pick up trad climbing with you it may be not the greatest idea to go for course.
I have to say that it worked fine for me!
>What and with whom will you climb after?
I joined a club and also found assorted partners on UKC.
> If you will go to climb with someone more experienced what person will teach you all you need as long as you can belay to start with.
There are definitely lots of people out there who are happy to mentor and support newbie trad climbers, but that's different from expecting them to teach someone from scratch.
In my experience, it's a lot easier to find trad partners if you're inexperienced but have some basic knowledge, versus looking for people who'll be happy to spend their climbing time tutoring you for free.