Uncertainty and disorganisation are keywords for the first few days of the university year. I'm not sure what it is like in other faculties, but it seems to be accentuated in architecture and design where there are not only lectures, but also studios to organise which involve large amounts of equipment....drawing boards, working tables, a workshop...and all the stuff you need to supply as a student(drawing and modeling supplies). It takes about a week for everything to some together and co-ordinate itself. As a "mature" student, and as someone who has been in the workforce for a number of years, it is necessary at this time to sit back and relax. Don't expect the place to run like a business(I guess it depends on the business you are comparing it to). The university operates under its own rules of time, manners, diplomacy and such. Hoping it operates in the manner of the outside world will only end up in frustration and disappointment. Having said that, as a "mature" student, if you apply the methods and lessons you have learnt in the workforce, and just focus on your own studies, then you will have much greater success.
Of course I could get into a discussion about the what is the "real world" and many would say that their place of work operates in some weird universe, but I won't as that would only confuse things and I'm only just getting started with this website, so the less confusion there is, the better.