Looking at the job vacancies out there - there are plenty that now offer openings for newbie drivers - but the pay is crap.
Of the jobs that offer top dollar - a LOT is expected of the driver, for example Aldi - where they state on the website that “only 40% of your working time is driving”.
Actually, I’ve come to the opinion that perhaps Aldi are employing senior warehouse staff who happen to hold a LGV licence?
Of the jobs that are “nearly 100% driving” - a LOT of hours is still expected out of you per week, which puts the issue of “overtime” down the pan straight away.
If your basic working week is say, 55 hours - then you’d need to be taking a week off to bank enough hours to perhaps get a single short shift of overtime once a month… Not good. 
I would argue that a higher headline minimum rate is better, with the downside of perhaps it being a right-through rate, i.e. overtime is freely available - but only paid at single time. NOT a problem if the base hourly rate is already north of £12ph.
Looking at the job vacancies though - the initial signs of a true driver shortage - will be “firms struggling to even get a handful of applicants for their advertized full time jobs”.
Around five years back, nearly all “jobs” on offer - were in fact agencies offering “ongoing work, ongoingly” ahem which dries up in months like January in particular.
Now, there seems to be less agencies about, with those that are still here from 5+ years back - seemingly only surviving by exploiting their staff.
This is to be expected going into March 2019 though. The real fun doesn’t start - until we finally get rid of Mark Carney at the Bank of England…
Why? - He’s sitting on the biggest magic money tree of all! - Britain’s stockpiled Eurocurrency reserves that the UK is obliged to keep to “uphold the Euro”, whilst artificially keeping the pound low these past 17 years since the Euro was widely rolled out across the world.
Dumping that lot, post-Brexit - would actually make British wages the top dollar for the world, driving even MORE economic migrants to our shores. This is why Brexit needs to be done in the correct order to succeed then: (1) Stop paying the EU (2) Re-set our trade routes and foreign trading partners so we can by-pass EU trade outright. Can’t do that if we stay in the Single Market or Customs Union. (3) Dump all our Euros, as we’re no longer obliged to keep them. The money raised with the Euro STILL at historically high prices vs the Pound - would exceed a trillion pounds, I suggest. That would be a “stockpile rate” of just 50million Euros per week tucked away in the Bank of England vaults. With such a stockpile, any attempt by the EU to take punitive action against the Pound - would actually be counter-productive for the EU, of course. IT just gives us an even higher price to dump our Euros on the open market at. The £12bn overseas aid budget - pales into insignificance, seeing as it would take 80 years of “not paying that over” before Britain is a trillion quid better off… The same applies to the Brexit Dividend, which even if one takes the low end estimate of NET £100m per week (net of Rebate) - we are talking two CENTURIES before we get to net grab what we could raise in a single day from dumping our Euros…
So what if the Euro becomes waste paper?
We couldn’t do this to Hitler’s Third Reich of course, as the Bank of England wasn’t stockpiling Reichesmarks in the day… 
America has taken some action against Turkey on the currency front… Erdogan is spitting blood of course, - but that’s all the nearest living world leader to Hitler can do. 
It is therefore in the interests of the EU to offer Britain a “decent deal” - before it is too late then. A “no deal” Brexit wouldn’t just end the EU otherwise - it would send the European member states into a Depression that would be bigger than the 1930’s one.
The only way to avoid that, would be for the EU to disband the moment Britain performs a Hard Brexit. This would render our stockpile of Euros worthless - but at least the EU will be dead, gone, and not coming back in our lifetimes. 
It won’t be nice for people with substantual Euro savings though - anywhere in the world. EITHER way!