Originally Posted by
tentseller
When taking family, associates and/or friends through SP or Pre, I always make sure my BP is on the top.
For TSA Pre-check, children are OK; but you aren't supposed to have other adults (who are NOT TSA Pre-check on their boarding pass) in that line.
Like anything else, perhaps, YMMV,
but I know Boston-Logan will stop people and send them to the (non TSA-pre) line.