Paddington has a notably confusing concourse gateline arrangement, given that half the platforms have gates and half do not, randomly mixed, and that there are separate little clusters of a few platforms being gated together, it not being possible to get directly from one group to another. I once just breezed through thinking it would lead to my platform, and I've noticed many others doing the same and getting stuck, the platform numbering not being particularly well signed at the crucial point. Up on the footbridge, the alternative platform entrance, there is some confusing signage, and I've stood up there and looked at some signage (was it to 13?) and thought that the arrow indications are just wrong. Given I've known the station all my life, it's not so much a problem, but others must find it sometimes challenging.