What if you do not trust grandma to be your children’s primary caregiver? This is part of the reason I chose to not have kids. I knew I could not afford childcare. My mother would happily do it for free, but she is batshit crazy and unpredictable. I would not want her to have unsupervised access to my hypothetical children for 8+ hours a day, 5 days a week.
That one definitely fucked me up. Although it wasn’t an English teacher but a philosophy professor who had us read it.