The age gate: twenty-one or over, for every guest
The age gate is the brief check a visitor passes before this site opens; each guest who books, and each woman listed here, is twenty-one or over.
Some hotel lounges in Amsterdam admit only adults after a certain hour, and nobody finds that remarkable. This site applies a comparable rule at its entrance. Before the first page opens, a visitor presses a button to confirm being twenty-one or over, and that click is the visitor's own statement that it is true. The wording is on the age verification page.
One threshold, in both directions
Twenty-one or over is the line on both sides of the door. Every guest who books has to meet it, and everyone listed on this site is twenty-one or over. It suits the people who actually write from Amsterdam's hotel rooms: travellers on business, couples on an anniversary weekend, residents between engagements.
Everyone in the room
The threshold follows the reservation upstairs. An assistant may place a request for an employer, and a partner may arrange one as a gift, but everyone present during the session has to be twenty-one or over. Sending the booking message is the guest's own statement that this holds for the guest and for anyone else who will be in the room.
At the door
A therapist may ask to see photo identification when she arrives. She reads it, returns it to its owner at once, and does not copy, scan or photograph it; nothing on it is noted down anywhere. Should she be unable to satisfy herself that everyone in the room is twenty-one or over, she leaves before the session begins, and the visit ends there. That call is hers to make, and it implies no accusation.
What the screen remembers
The gate stores a single item on the device used, so that the question is not repeated on every page, and it holds no profile of the person who answered. What the site keeps is described on the privacy page, and practical questions about a stay are answered in the FAQ.