Punk:
In answer to your question in OP - yes, they certainly are here in my small town in West Wales. This is the sort of town where you generally bump into people you know and a walk through town usually involves stopping several times for greetings/conversation.
Last time I saw a cart, a couple of weeks ago, it was on a sunny Saturday morning on a busy pedestrian spot. Manned by two young guys (20-ish or younger). TBH I felt sorry for them - they had shirts and ties and looked a bit nerdy and geeky, with all due respect. It was noticeable that pedestrians gave them a wide berth but were happy to pause (and contribute) to busker nearby.
Mea culpa, I couldn't be bothered to engage the JW bros in conversation. They were of an age where they have access to the internet. Sometimes I don't have the time or inclination to engage with robotic drones.