Birth Rates Aging Population Fertility Rates Migration Patterns Temporary Residents Immigration Impact Urban Migration Pet Ownership Death Trends Birth and Death Rates Childbearing Urban-Rural Migration Family Dynamics Native vs Foreign Workers Youth Migration Economic Impact Workforce Aging Education Impact School Enrollment Childcare Services Child Population Commuting Patterns Birthrate Decline Urban Areas Education and Workforce Marriage Rates Childcare Demand Cultural Significance Cultural Influences Millennials Name Popularity Decadal Growth Workforce Philadelphia Immigration Effects Workforce Participation Impact on Industries Sickness Benefits Birth Rate Reproductive Healthcare U.S. Demographic Changes Global Birth Rates US Birth Rates City Population Growth California Population Population Growth Aging Workforce Migration Decline World Population Decline Aging Farmers