DD is 15, and is applying for sixth form. She wants to be a surgeon, and has for a long time. She wants to do biology, chemistry and maths. The only problem is that I don't believe she's smart enough to go down this route. I've gently tried to push her more towards nursing, but she's adamant. She only got a 3 in her science mocks, and a 4 in maths. In my head, this just doesn't seem enough. My son is currently in uni doing veterinary medicine, and he got all A's in his GCSES. I don't want to be absolutely awful and tell my daughter she 'isn't good enough' to achieve her dreams, but I really don't want her to be let down. Should I just tell her?