They definitely can. Sometimes just because they've had lots of practice, sometimes because it's just something they're "gifted" with (from nature) that not everyone has tapped into, and sometimes because - as Tylas said - there's a reasonable amount of shared knowledge and he has found a way to tap into that.
For instance; L is 9 years old and none of us in the system, except her, is good at crafts like knitting or sewing or crocheting etc. Our SO sat down with her to teach her to crochet because they both like creative things. Within minutes she was further along in the crocheting work than my SO and that was that. We have never been taught this, she said herself she had never done it or been taught it before. At a 9 year old level - it should have taken time to explain, time to adapt her fingers and fine motor skills (especially since we have problems with our hands due to trauma) and time to .. well, get a hang of what she was doing. This doesn't mean she's not 9 - it just means she's good at it.
Jimmy draws a lot and if he's good at it and it makes him happy, that's really all that matters in the end

You have DID Geoff, we see it here everyday (and my littles talk about both you and Jimmy often, asking him you're doing - I'm not exactly sure why they've taken such a shine to you (except that you're both obviously nice) but they have

) and we will support you both through the times you believe and through the denial

All of our best