Lots of businesses in the UK operate with employees not working 40 hours a week. Some of them have 'zero hours' contracts where work is at the discretion of the employer, at hours of their choosing, and with little notice.
If it makes more economic sense for Uber to have a pool of full-time drivers to send to jobs, then that's a model they can move to. If not (because demand is inconsistent, or not evenly spread throughout the day, or whatever) then I have no doubt they'll continue with flexible rostering (perhaps taking more control as to timetabling).
And the UK is not in any way short of private hire companies or drivers. Many of them have apps, and Uber is not consistently cheaper than other cab companies. Frankly from a customer point of view it doesn't make a lot of difference whether they go out of business or not in England.
If it makes more economic sense for Uber to have a pool of full-time drivers to send to jobs, then that's a model they can move to. If not (because demand is inconsistent, or not evenly spread throughout the day, or whatever) then I have no doubt they'll continue with flexible rostering (perhaps taking more control as to timetabling).
And the UK is not in any way short of private hire companies or drivers. Many of them have apps, and Uber is not consistently cheaper than other cab companies. Frankly from a customer point of view it doesn't make a lot of difference whether they go out of business or not in England.