Are kids a massive responsibility? Yes. Can they be a burden? Yes. Can they also bring parents an immense amount of joy, happiness, pride and adjacently a sense of accomplishment? Yes. One of my favorite memories as a kid was going to Disney World with my parents, and seeing them enjoy mine and my brothers reactions to something they both enjoyed. That gave them so much joy.
I won't judge people for choosing to have kids or not. But this whole childfree/look at me and all my money & less responsibility attitude is lame.