In podcast 2 when the host used 30 as being “older”, the balance of the podcast lost credibility and interest to me. I’ve not really listened since.
Good art is good art, the age does not matter and I am sure few art directors would even know the age (or care) of the artist.
The issues facing “older” artists is not much different than a younger or young artist. Other than talent/ability, I think all artists face the biggest issue of time. If you are a working professional artist drawing and creating are a part of your work day but for the rest of us it simply is shoehorned in when and where we can.
Like most here I work full time +, have family matters to attend to and have a second volunteer job 5 nights a week. It’s touch to fit time for artwork.