Is this weird?

My boyfriend of over 2 years was with his ex from ages 16 to 23.  She became a lawyer and I've looked her up and she looks so well put together.  The last time they had contact he was 27/28 and then he ran into her again at 29 and didn't say anything to her because he and I were together.  He's 31 now and hadn't seen her or anything.  Anyways, she's a lawyer and that's what I want to be.  I'm 20 years old.  Is that weird that I want to have the same career as her?  I asked him if it would bother him and he said no, but I still feel like it's weird?? Am I over thinking it?