Pretty good approach. Most of the most interesting people I know started adult life doing one thing, and eventually switched to another thing. Maybe after one or two years of an undergrad, maybe after 15 years of a career.

I've got one friend in his late 30s who has been a highschool teacher for over a decade, and is still thinking of switching careers to be a train driver. He does public transport activism a bit too. I reckon you could head into the train network with IT skills anyway - maybe as some kind of network operator. Not quite the same thing, but aligned..

I would say that you should absolutely take maximum advantage of any electives offered to get as broad a taste of what's available as possible. That's what will give you ideas about where to head next.