I have a lot of Nurses in my family, and I have heard this sentiment many times. Not exclusive to Nurses I think, but they seem to have a particularly nasty reputation for this.
Do Artists do the same? I have had contact with fewer blacksmiths than I would like, but have met a good number of professional, amateur and hobbyist artist blacksmiths.
I have met some people who are amazing and inspiring. They work hard, share what they know with enthusiasm, pass on leads for work they can't take on, contribute productively to a community of metal artists.
As in any group though I have met the other sort. People who hold on to a mythos about what being a blacksmith is and means, who disparage the efforts of others, are threatened by change and who would exclude anyone who doesn't meet their narrow definition of who should be a blacksmith.
I am inspired by the first group, and while the second group disappoint me I also know they are not worth wasting time on trying to change.
If you want to go fast, go alone. If you want to go far, go together. That saying was true then, and it's true now.
The first group I will also say is a much more diverse group by gender, age, ethnicity, sexuality and ability than the second. I am guessing that is not a coincidence.