I started playing fingerstyle and percussion guitar when I was little, then when I got my electric, lead was naturally a LOT easier because I was used to playing mostly single notes very quickly, whereas I never really strummed a guitar very often and only recently after 9 years of playing got my first pick (which makes rhythm easier) so it's more not knowing what I'm doing than timing
You bring your voice
I bring my drums
And we can...rock together(;
Let's do it!
Same with rhythm guitarists when there's a lead guitarist as well.