We all know how toddlers tend to have no filter when asking questions or making assessments about, well, everything, but that delightful little child-like wonder also extends beyond preschool. Just ask Scarlett Johansson, who recently had to explain the concept of “panty lines” to her 7-year-old daughter, Rose.

In a recent interview with InStyle, Scarlett Johansson talked about the curious nature of her daughter—particularly in relation to her mom’s beauty routine and underwear. And honestly, if you think about it from her perspective, she makes a good point!

“Why are you tweezing your eyebrows? Why are you curling your lashes? What’s a tampon? What’s it for,” says Johansson, imitating her daughter, whom she shares with her ex-husband Romain Dauriac.

“She asked me why my underwear went up my butt crack, and I had to try to explain what a panty line was,” the Sing star explained. “I was like, ”cause you don’t want a line in your pants,’ and she was like ‘Why?’ And I was like, ”cause then you could see my underwear,’ and she was like ‘But you are wearing underwear.’ Like I know, it’s weird.”

And it is weird! Who made these rules anyway? I doubt my husband has spent even one millisecond of time worrying about his underwear or eyebrow strays, but these things have dominated my own life more than I care to admit.

Our curious kids keep us humble, though, don’t they? My own daughter once asked me why I “paint” my eyebrows (Glossier Boy Brow for the win). She’s also disgusted by bras and the need for one and refuses to acknowledge that she’ll likely be wearing one someday too. Which, fair.

Last year, Johansson and her husband, SNL‘s Colin Jost, welcomed a son named Cosmo. In December, she told Jimmy Fallon that Rose wasn’t super interested in her little brother just yet. Which, also fair.

“She has a lot going on in her life. She’s got a very active social calendar, so she’s not as interested in the baby as, I don’t know, let’s say, like, any other thing really?” she said at the time.

But nothing, and I mean nothing, beats the “butt crack underwear” question. Mamas of little ones, get ready for an endless future of questions and unsolicited commentary that will make you laugh for years to come.