Originally Posted by kb5ql
I ride with my son (5 1/2) on a trail-a-bike and my wife takes our 19-month old on a
topeak rear seat. I find the rear seat better than a trailer as it takes up less space on the path.
YMMV.
Sort of a toss up, they problem with the rear seat, if your bike takes a tumble, so does the seat, that's a good 3-4 foot fall. The trailer won't take the fall, so there are advantages and disadvantages to both.
Just everyone, make sure the kids have helmets in either case, please.