I would be interested to know the stats on how often docs in the US prescribe certain meds vs in the UK. Over here, it's more likely that you want to be prescribed something and can't be. If it's addictive or can be used recreationally, most (though not all) doctors will be hesitant to prescribe. As we have the NHS, the doctors don't receive kickbacks, donations etc. So that could have a lot to do with it.
That said, they're usually still fairly quick to prescribe an SSRI. For me that has generally been a good thing, though to Boombox's point, it can often come at the expense of them doing any investigative work.