The guards is there in most of the businesses. Actually the thread title has confused me. I thought you were asking about who had shown us the path to our business. 😂Each company is governed by its agreements and responsibilities. In the particular case of the functions of the employees of a trade, company or institution, where there are security personnel. Whose responsibility is it to open doors for staff to enter? The owner or the watchman? I have seen discussions because the guards want to put you as gatekeepers when your responsibility is to take care and as the word "watch" says to protect and take care of the staff.
In our office job, we have security guard for this purpose, who is paid well for this job.