While I don't know where (or even if) you ski, when I skied years ago, there was a huge difference between a "bunny slope" and a "beginner run". Bunny slopes are appropriate for 4-year-olds; beginner slopes are not.
From the first article linked in a post above:
...had been skiing on a beginner run
Sorry, missed your statement that you ski 10-14 days a year. While I haven’t gone skiing in many years, I’m quite sure that the distinction between bunny slopes and beginner runs still exists. The article describes their being on a beginner run - a place that’s definitely not appropriate for 4-year-olds.