Definitely, in my last band we used to see a lot of this, bands wanting to use full back-lines (often even asking to use guitars) as "they were travelling to the gig" - well none of the other bands lived at the venue so they must have been "travelling" as well, spending an hour on a "sound check" which actually turned out to be them rehearsing their set as they clearly never did this anywhere else, and as soon as they were at the venue their priorities were where`s the free beer rather than checking out the stage/PA/lighting/sound-man/areas to display merch etc. As one old-hand said, they weren`t bands, they were groups of blokes on a Saturday night out.