That’s totally fair (and there indeed was a time when the typical response to my resume was, "we are not looking for juniors") :-) But this argument makes sens

That’s totally fair (and there indeed was a time when the typical response to my resume was, "we are not looking for juniors") :-) But this argument makes sense only from the collective standpoint (as in, the industry in general). Of course developers have to be trained by someone, because otherwise there will be no dissemination of knowledge, no passing down of experience, and no qualified workforce. So of course that should be done. The question is, whether you (as a programmer on a team looking for new members, or as a company looking for new employers) need to be doing this, or whether it's all right to let someone else do this while you look for already well-trained and experienced professionals.