In the UK this will probably be dealt with just as pathetically as mobile phone use when driving...
1) Wait 3 years after the problem becomes acknowledged by the general public..
2) Parliament wakes up 3 years too late and then spends another year prattling about it..
3) Finally get some legislation in place 4 years too late
4) Then the Police Force declare a 6 month amnesty '...until the driving public get used to the idea' (probably illegal actually, a law is a law!)
5) End Result... nobody takes it at all seriously, esp. power-suited dodgem dames on the way to their date after work; White van men; Mums doing the school run with umpteen kiddies in the back of tinted window SUVs; Yardies doing their drug-runs (cut and shut BMWs usually)... etc
Bet that's the timescale and nett effect in this case too... zilch!
PS.Nos 1 & 4 were shameful - sent totally the wrong message!