When people enter particular professions they become ‘targets’ . Not that just about anybody can be pumped for information, but certain professions will have more of this kind of approach than others.
The questioner is not always one who needs their services and can’t afford them, but those who waste your time.
They do this because they want to be able to say; “I spoke to a (lawyer, doctor, engineer, etc) …..” to legitimise their position.
The Professional might think this is a potential client. The Professional might listen, maybe make a suggestion.
Often, to be accurate, the Professional needs further information; a document, for example.
Persons who are serious about the issue will attend the office of that Professional with the document the next day, or so.