Will it have any impact if employees travel after applying for parental leave?

No. Check the "Implementation Measures for Marriage Leave, Childbirth Leave (Maternity Leave), Paternity Leave, Parental Leave, Nursing Leave and Other Vacation Leaves": For couples who have children in compliance with laws and regulations, when the child is under three years old, the employer will grant each spouse 10 years of leave every year. days of parental leave; if an elderly person over the age of 60 is sick and hospitalized, the unit where his or her child works will grant an accumulated nursing leave of 20 days per year to an only child and a total of 10 days per year to a non-only child. It is also stipulated that you cannot travel during parental leave, so there is no impact.