If you haven't ridden in quite some time, I wouldn't haul your child yet. Take a couple weeks of riding. You'll gain much more awareness of what's going on around you AND improve your skills.
I got back into riding 3 years ago at age 56. I had trouble looking back without swerving all over the place. I'm MUCH better now and can also see what I'm looking for much quicker. Kind of hard to describe, but I feel much more confident about what's going on other than what's directly in front of me.