Some moms feel that their careers slow down after they take time off to take care of their children. This makes it harder for them to go back to work. The Fawcett Society wants the government and businesses to help moms and dads equally so that they can have good opportunities at work and take care of their families.
https://www.independent.co.uk/news/uk/home-news/work-parental-leave-motherhood-penalty-b2511547.html