They seem unaware that a lot of SF based people go to the east bay.
But it's not inevitable that families move to suburbs either. Commenter is partly perpetuating a 1960s era "white flight" kind of stereotype, where cities are said to be terrible for families. I happen to have two kids in SF.
Additionally, a lot of what drives people out of SF specifically is the expense.
SF is a great place for kids of all ages. But housing is indeed very expensive, as is childcare. Families in rent-controlled apartments who want more space without significantly higher expense don’t have a lot of options; several such families we know ended up moving out of the city (sometimes to elsewhere in Northern CA but often across the country to be closer to family). I don’t know anyone who moved because they thought their kids were having a bad time in the city.
But it's not inevitable that families move to suburbs either. Commenter is partly perpetuating a 1960s era "white flight" kind of stereotype, where cities are said to be terrible for families. I happen to have two kids in SF.
Additionally, a lot of what drives people out of SF specifically is the expense.