We all wanted to be something helpful when we were kids. I wanted to own a sweet shop, whereas Minaj - or Onika Maraj as she was known back then - wanted to become something altogether more noble. She wanted to become a nurse. Not sure what's she's doing with Drake here, but it's certainly not nursing in the professional sense. I suppose it'd be helpful if his lap suffered a cardiac arrest...
By the way, the video is probably NSFW given the aforementioned Drake scenario.
Oh, the innocence of youth.