E-scooters operated by Tier in London will now ask if you've been drinking alcohol and encourage you to order a taxi instead if you answer yes. The anti-drink e-scooter feature on the Tier app is active between 9pm and 4am on Thursday, Friday and Saturday – the peak periods for boozing. Tier is one of the three e-scooter operators involved in London's 12-month e-scooter trial, which kicked off on Monday, along with Dott and Lime. The trial has gone ahead despite concerns over their general safety – it's feared inexperienced Londoners will use them to get home after a night's drinking...