Well, I wouldn't lay that at Bird's feet. Yeah, I guess there were some, who erroneously thought that if they used, that would elevate their playing and they would become more like him. But I don't think we can blame the whole drug scene on Charlie Parker! Or just heroin. Of course, there were all different drugs around, and many musicians partook. I haven't read up on the experience of everyone, but it would seem that many, if not all, the people in Mal Waldron's circle, were into them, according to Waldron.