But it’s not an either/or situation. Office drone vs actor/entertainment industry.
I think I’d be concerned that this is what the OP’s 13 year old thinks, possibly because the OP also thinks it, or because the DD doesn’t see around her much variety of career. That it’s less that she’s interested in acting or the theatre industry than that she thinks it’s the only alternative to sitting at a desk.
In your shoes, OP, I would expose her to as wide a variety of careers as possible, especially anything that doesn’t involve sitting at a desk, is outdoors, or is in the community, involves using your hands, creativity etc — off the top of my head, among people I know who don’t have ‘desk jobs’, friends of mine run a community arts programme (currently readying floats, costumes and giant puppets for a Halloween parade), one is a forensic archaeologist, one runs a scheme where she supports artists with learning difficulties, one is on the FT staff of a film festival, one runs a children’s theatre company, and set up a circus skills school, one works in forestry, one is a furniture maker, one is a sommelier, one is on the gardening staff of the university, a couple of police, one in forensics etc etc.
Just to let her know it isn’t a stark choice between acting and sitting in front of a spreadsheet eight hours a day.