It's a form of respectable begging, so it shouldn't come as a surprise that it would eventually be exploited by entire families of professional beggars who come thousands of miles to use the magazine as a prop alongside their wheelchairs and dogs.

If you want to see this in action, walk around the financial districts of London at lunchtime.

But if one had the ability to travel thousands of miles why not use those resources to buy a car to do deliveries or some other gig work? Gym memberships are like 10p if you have a car life is like 75% good

A professional beggar, as you describe it, has little to do with modern slavery, as mentioned by the grandparent comment.