You know OP, I think I get where your coming from.
I'm a full time successful Children's book illustrator. I was (am!) very academic and bright. I came very near the top of my class with most things except Maths and Physics. I said all my school life I wanted to study English Lit at university ( I even went as far as having a place) - but then changed to study at Art college at the last minute. I remember the moment clearly. My gut instinct was telling me something.
My parents weren't best pleased.
What followed were some great college years and then about 10 years of struggle. Now, I'm known in my field. Well published. I have a average decent salary can change year on year. It's not a really high wage earner BUT I'm hugely satisfied with my career. I'm constantly using my brain, visiting schools, colleges, giving lectures, coming up with creative things out if a void, great business skills.
YET despite all this, I said to my DH the other day that if one of my DC's said they wanted to do art there would be a tiny piece if me that would be disappointed. WHY? Goodness knows. The only thing I can think of is that as I'm surrounded my arty, creative types I see many if them struggle and I'd want to protect them from any if that.
However, in the last 15 years I've seen a fair few of my non- arty friends being made redundant out of the blue. I wouldn't want that either. I think we can't protect them from life.
I'm SO glad that my parents had the guts to support me in my decision ( although they were very panicked for a good few years). It would be horrible to not know whether or not I could have followed my dream.
Let your DC look into it. You can find average salaries on the Internet. It's a huge business, especially the design/computer end, but its exciting!
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