How old were you when you decided you wanted to be a scientist when you were older?

Question: How old were you when you decided you wanted to be a scientist when you were older?
- Keywords:
  decide,
  scientist,
  young
Asked by @lucyeharper to Adam, Matt on 23 Jun 2017.
- Adam Hargreaves answered on 23 Jun 2017:
  
  I was about 21 I think, I was doing my final project for my degree in a venom research lab for about 12 weeks, and I think at the end of week 1 I’d decided that’s what I wanted to do.
- Matthew Lee answered on 23 Jun 2017:
  
  I was probably 21. It was in my final year of University and i had no idea what i was going to do when i finished, i decided that i should keep doing what i love which is science and so i applied to do a masters degree to learn more science and then i got a job as a scientist after that!

Question: How old were you when you decided you wanted to be a scientist when you were older?