Someone has already mentioned that 50 years ago having kids was the expected norm. Those outside of that were subjected to a barrage of 'when will we hear the patter of tiny feet' or 'she hasn't met the right man yet'.
All this type of chat is a backlash, IMO. Women without children have been pitied and derided for it for far longer than the 'childfree and happy' have been allowed to be so.
As a female artist, she'll have been asked about kids way more than her male counterparts. As an ordinary person in their fifties married without children, I've heard about it way more than my husband has. The sort of depressing attitudes still espoused on this very thread by a handful of posters were far more common in my 20s.
Saying you didn't want children was an invitation to be laughed at, endlessly told you'll change your mind, in fact it was just a long round of being told by someone else what you should be.
This young woman made a generalisation, yes. But in her country right now it's very likely she's hearing an awful lot about how lonely she'll be, how she's not old enough to know her own mind, how she'll be a sad cat lady. How she'll never know true love, etc, because those attitudes are all on the rise again.
Child free women have had a bit of a moment in the sun for a few years. Now the birthrate has dropped through the floor, and the religious right is once again in ascendance in this lady's home nation, being child free is reverting back to a position to be defended.
I've got to admit, I got so fed up of hearing about how I really should want to be a mother, I resorted to saying how miserable I thought parents were. I didn't believe it, but got so sick of hearing about how miserable I was going to be without fulfilling my one, true purpose. And, by the way, in the early days I was defending a decision not to go down the rabbit hole of fertility treatment.