There would have to be changes (perhaps significant) for domestic flights (or domestic flights connecting to international flights) to accomplish this.

Many folks check-in online, print their BPs at home or 'on' their smartphones and head straight to security when they arrive at the airport. Some airports have unmanned check-in kiosks at the exit from the parking garage/entry to the terminal where pax can check in, print BP and head for security.

I fly quite a bit domestically, random routes, and I don't think this is as big a problem as some folks make it out to be. The airlines don't seem to think so, or they'd be changing their policies.

There are many elite status frequent flyers like myself who do not pay checked bag fees. Many of us would willingly check a bag (I don't always like trundling my rollaboard all over large airports when I have a connection) if the airlines would step up and address security and timely delivery of luggage.

I'm going to avoid checking anything more than I have to if I can't safely lock my bag and not wait 45 minutes on arrival. The airlines could work with TSA to improve baggage security (both are at fault, although I think TSA is more often than not the culprit) and timely delivery (Delta and Alaska have addressed this - the former with priority tagging, the latter with a 20-minute delivery guarantee or $ on the spot).

I don't mind checking my bags when I fly international-to-international, and I frequently check a bag when returning from an international trip (because I can secure it with a far greater confidence in security because it doesn't pass through TSA).

If these issues were addressed, I think you'd see people more inclined to check bags. As it is, because of baggage delivery delays (and, to a lesser extent, inability to lock bags), you don't generally see a mad rush to the podium when a GA announces fee-free gate checking for anyone who has planned on taking their bags as carry-on.