Debut of Mbarane at "Les Ambassades"

On this beautiful Tuesday morning, I am sitting at a famous coffee house called Les Ambassades, waiting for my brother. He is supposed to accompany me to a shopping center to buy some essentials for the house. While I wait, I order a hot chocolate and a Croque- Madame, which is a panini with fried eggs and beef ham.
All of a sudden, enters a elegant lady, talking on the phone. She is looking for a place to sit, and she changes places twice already. She is wearing a Senegalese attire made of a pink tunic with bold embroidery at the neckline, a burgundy wrap skirt and scarf. She has golden accessories such as mules, and bag and jewelry. She is well made up. I cannot say she is beautiful, but she is classy. It seems like she is waiting for a friend.
My food arrives. I taste the hot chocolate that I find really good, the panini is not bad but a bit greasy. My brother is still not here, although he keeps texting saying that he is on his way. I keep admiring the lady sitting next to me on another booth. A older man wearing the Senegalese Kaftan approaches her. He greets her in that too effusive way that tells me they do not know each other. I understand that the man seems interesting in the lady. Their conversation turns too quiet for a moment. I look at them and I notice that the lady is writing something on a piece of paper. I could not believe that she is giving her phone number to this man. At this moment, her "date" or the man she was waiting for arrives. The other man a bit uneasy starts talking too much, saying that he knows the man who just arrived. Then after a bit of uneasy conversation, he leaves with the piece of paper. The other man sits down and starts eating the food that arrived. He discuss with the lady about other matter like nothing happened. I kept wondering: are the lady and her "date" an item or just friends? The exchange just seem strange to me. Two days later, I relate the event to my brother, who just laughed. He let me know that this was frequent in here. To tell you the truth, I knew about this, being a victim myself. I find it disgusting that older men try to get fresh meat like that. Some of them are married, but they are still on the prowl. And the ladies are not innocent themselves. They let those men into their lives in exchange for some money to buy shoes, clothes, or even take care of their family. It is a strange business that they call "Mbarane" here. It rarely ends in something serious like marriage. It is just for pleasure and money. When will it stop?