There was a push for a gated system here, some years ago. The vendor tried to sell it on massive cost savings...and was publicly humiliated by a bunch of geeks

There was a push for a gated system here, some years ago. The vendor tried to sell it on massive cost savings...and was publicly humiliated by a bunch of geeks with an Excel table. Turns out, installing and running the gates would, at best, bring parity with random ticket inspections+fines - while impeding passenger flow as a bonus. It's not necessarily a matter of education: just the feeling of "not worth freeloading (at the price), I'm likely to get caught anyway" is sufficient.