It really depends what those professionals are used to. I did an Apprenticeship as Software Developer in Switzerland. That is, 1 year of school followed by 3 years alternating between the company and the school. So once you start at the company you already have a viable amount of knowledge in programming, databases, networking, etc and supposed to be able to work on your own.

You don't get constant mentoring at the company, but can ask one of the developers or fellow apprentices when you're stuck with one of the tasks you get assigned. Or for example, any time a developer had a small task that he felt, I couldn't do by myself, or it was too time critical he just asked me to sit beside him and watch, listen and take notes while he did the work. How it works is different in any company but the outcome should be the same: real world experience on real projects with real clients and their time/budget constraints.

That means, once your finished and a professional yourself, it isn't a question of interest but a completely normal thing to help out the apprentices. Because that's how you got to the point where you are.