The free walking tour is not free and it is not a tour

The hat comes out at the end. That's the whole mechanism. Two hours of being walked past things you'd have found yourself in twenty minutes, delivered by someone in a branded t-shirt performing the role of spontaneous local knowledge, and then the hat comes out and suddenly you're in a hostage situation with strangers from a hostel.

I've done three of these. Prague, Lisbon, Seville. The script is identical. There's a 'hidden' square that's in the first Google result for the city. There's a story about a king or a plague or a fire. There's a joke about the local drink that lands the same way every time because it's been A/B tested on forty nationalities. The local secrets bit comes about forty minutes in, always after the second big monument, and every secret is on every travel blog written since 2009. Then the coffee shop. It's always the same coffee shop. The tour operator has an arrangement with the coffee shop. You are not a traveler at this point. You are a delivery mechanism for foot traffic.

• The 'tips welcome' framing: designed to make you feel like you're paying a friend, not a service. You are paying a service. The friend part is the product.
• The rehearsed detour: feels like an accident, lands at a photogenic wall. That wall is in the route notes.
• The group shuffle: fifteen people moving at the speed of the slowest person is not wandering. It is a slow bus with a microphone.
• The flag: if you are following a flag through a city, that city is not happening to you.

Wander. Get lost. Eat somewhere the guy with the flag would never stop. You'll find more in an hour of actual confusion than in two hours of managed discovery.