Will I be invited to the small room for questioning by the Hong Kong Immigration Bureau if I borrow a ticket with my passport?

First of all, this is not recommended, because especially the elderly, there is no need to be questioned by immigration officials about their personality.

There is really no other way. You need to work hard on the plane ticket. For example, the destination of your air ticket (if it is some South Asian countries such as India and Pakistan, the Hong Kong Immigration Department will not let you cross the border into Hong Kong at all), the purpose and itinerary of your visit, and you may also ask questions about the tour group and handling procedures (if it is a tour).

To put it bluntly, your checkpoints are mainly in Hong Kong, and the people of the Hong Kong Immigration Department are not experienced. Their questions often reveal the flaws in the well-made story, especially those who can't lie, and they can't stand repeated questioning.

In addition, even if you enter Hong Kong and leave Hong Kong to return to the mainland, problems will still arise, because at this time you have to tell more stories to explain the problem of "canceling your trip" and having to return to the mainland. After cross-examination, those who are light will be warned and even fined, and will be considered as you deliberately violated the entry and exit laws and did not do a good job, which will have a great negative impact on all of you (especially young people) entering Hong Kong in the future, which is very uneconomical! !