Upvote:1
It's one of those things. On a busy day, the immigration official isn't going to ask you to show everything. If they're worried about you, they may press. Their concern is to make sure you're fully and legally prepared for your trip.
So if you have all your tickets ready, your passport at hand, and papers, accommodation and travel plans printed out, you'll look organised and probably won't get too many additional questions.
However, it could be that one day where they're focusing on insurance. It's impossible to know for sure.