There have been many, many discussions on this forum about the impact of age/looks/image in the music/entertainment biz. And when it comes to pedal steel, they mostly concern men, simply because most pedal steel players are men. I think a cursory search should reveal many such discussions, unfortunately. I just don't think it makes sense to dwell on this - image/ageism is not a new thing in the entertainment biz. If one is gonna be in the mass public eye, it is pretty important to keep oneself in good physical condition. And this is not only important for image but for stamina in the hurly burly entertainment world.All things equal, and image being just as important for men on a gig, why does it only ever seem to be discussed when it's a young woman in question? I'd love to be proven wrong on this point.
I hate to weigh in on this discussion because it just feels negative. But this fact is very clear: Arianna Powell is a really fine guitarist, and I'm confident that the primary reason she is hired by many high-level professional acts is her musical ability. You have to be able to cut the gig at a professional level, and she certainly does that.
As previously mentioned, she is not known as a pedal steel player. But she still plays appropriate parts that fit the song, which is undoubtedly what they wanted. That is what professional musicians do - play parts that fit the gig.
As an aside - I sincerely hope she really 'catches the pedal steel bug' and presses onward. If she does, I believe she should be able to rapidly adapt her excellent right-hand guitar technique, which will make her a real contender in the pedal steel world. Her guitar technique is so obviously very disciplined and excellent. She is clearly a very dedicated musician with loads of talent.