Young Brits are catching flak for their apparent lack of entrepreneurial drive, sparking a broader debate on whether the U.K. startup scene is facing an ambition deficit. It started when U.K. Business Secretary Peter Kyle criticized British university students for lacking the same interest in starting a business as their American peers. "In Britain, if you went to a group of undergraduates, how big would that group have to be before you found someone that said their choice of going to