Our results suggest that more educated parents tend to restrict their children’s physical activity more, while at the same time may provide more opportunities to engage in screen-based behaviors. This is an interesting finding as, before the pandemic, children with more educated caregivers tended to engage less with screen-based devices than children with less-educated parents. This may be partially explained as more educated caregivers may have to work from home, and this, in turn, may require the caregiver to use screens to entertain their child while working from home. This may be even more complicated in families living in apartments, one of the strongest predictors of declines in physical activity and increases of screen time observed in this study during the pandemic. This finding has implications for urban planning. As the full impact of COVID-19 is uncertain and other pandemics may occur, upgrading substandard areas that are currently plenty of small social apartments with insufficient recreational public spaces should be considered, together with stronger regulation, as part of a plan to build healthier and more resilient cities. Undoubtedly, families and caregivers play a key role in facilitating movement behaviors of toddlers and preschoolers, but some political actions such as allowing specific time for those residing in apartments to go outside with their family may boost the process. Some caregivers and family characteristics (caregiver’s sex and age, number of people and children per home) were also associated with changes in movement behaviors during the pandemic, so strategies should consider messages and actions for the entire family group, particularly small families and those whose main caregivers are aged 35 and older [22].