Oh for sure, I'm sure there are plenty of actresses who've had their big break at 30+, but most of them have years of experience prior to that and an acting education - even if its just doing smaller roles on soaps or other British shows before they get a big blockbuster. I guess what I meant more was that, a lot of actresses do get their 'big break' in their teens/20s, and because they are known and directors know they will bring in viewers, they still get meaty roles close to or in their 30s (like Emma Stone, Scarlett Johansson, Emily Blunt etc) instead of just the 'mum' roles or background roles. Then there's the other actresses who do put in the work, but also have connections/a famous parent on their side like Lily Collins, Blake Lively etc.I don’t think it’s true to say she couldn’t make it as an actress whilst almost 30 - there are people of all ages and appearances working in theatre and media, and it’s not unusual for older students to study at places like RADA.
The problem is that Tan doesn’t want to be an actress because she loves the craft of acting, she just wants to be a famous actress working in TV or film. She wants to be a celebrity. Even beautiful, talented and successful actresses throw themselves in punishing theatre schedules when they could theoretically coast off money from blockbusters but they do it because they love it. I’m sure Tan’s dream acting job would be either playing the heroine of a BBC Sunday night drama or the ingénue in a mildly sexist Oscar darling.
The trouble is though is like you said, she's not willing to put in the work and instead just added a bunch of stuff to her CV that wasn't there. I feel like her being a Youtuber previously also means she kind of needs to put in even more work to be taken seriously as well, as she'd get backlash. I remember when Sam Frost started on Home & Away, a lot of people weren't happy as she was previously on The Bachelor/The Bachelorette and didn't have much (if any) acting experience.