> Combined with having grandparents watch the baby several times a week
yeah, not everyone has that. see: us. No free time. Weekends are more exhausting than weekdays.
Also, things got noticeably harder after the 18th-20th month or so, when he went from 3 naps a day to 1, and when he started being VERY mobile and thus FAR more dangerous to himself. It didn't help that I was sick the entire month of November last year (to the point of hospitalization for part of it). Her parents live 1.5 hours away and keep making excuses about visiting; my mom died in 2020 and my dad and sister moved to Floriduh just when he was born because that was already the plan before he showed up...