Venezuelan Samuel Romero in Bogota, Colombia. The 21-year-old migrant logs on to Rappi, an app for cyclists to make deliveries in the traffic-clogged city of 8 million. (AP Photo/Fernando Vergara)
Venezuelan Samuel Romero pedals through Bogota, at the start of his work day. Initially, he was making almost $22 each day but his daily average has now dropped to $15. (AP Photo/Fernando Vergara)
Venezuelan bicycle courier Samuel Romero and fellow Venezuelan couriers make sandwiches as they wait for delivery orders through Rappi in Bogota. (AP Photo/Fernando Vergara)
Venezuelan couriers wait under a tree for messages from the Rappi app to make deliveries in Bogota. (AP Photo/Fernando Vergara)
Bicycle couriers wait for messages from the Rappi app to take orders to clients in Bogota. (AP Photo/Fernando Vergara)
Venezuelan bicycle courier Samuel Romero who works with Rappi gets ready to start his work day in Bogota. 'I am grateful to have some work,' says Romero. (AP Photo/Fernando Vergara)
Venezuelan bicycle courier Luis Tarre, 60, kisses the head of his 20-year-old son Raul as they wait for Rappi delivery orders in Bogota. (AP Photo/Fernando Vergara)
Venezuelan bicycle courier Luis Tarre, 60, reviews his cell phone as he waits for a Rappi delivery in Bogota. (AP Photo/Fernando Vergara)
Venezuelan bicycle courier Luis Tarre, 60, takes an order to a customer in Bogota. (AP Photo/Fernando Vergara)
Venezuelan Rappi bicycle courier Luis Tarre, 60, embraces his wife Dingle Gonzalez before they start their workdays in Bogota. (AP Photo/Fernando Vergara)