You want peanut butter on your breakfast breads where you want to spread jelly?
You want jelly on your produce(apple, celery,etc) as you're dipping with peanut butter?
Also peanut allergies and cross contamination for multi-family households
Like... I dunno, I get your point but you can't put everyone in the same box.
Allergies don't belong in this conversation. Cross contamination, however, does.
Having one in the other implies that knife/spoon has been used on the bread. Those bread crumbs are going to cause jelly to grow bacteria/mold sooner than they would in the peanut butter. Thus, the lower moisture(peanut butter) environment is better to have been cross contaminated than the higher moisture environment(jelly).