The Catholic-run welcome centre, the last stop for migrants before crossing the border into the USA, offers meals, clothing, medical and legal assistance. It has become a waiting room. The group running the welcome centre attributes lengthened stays (300+ days) to the pandemic and Trump’s ‘Remain in Mexico’ policy. Many who get into America are ejected by Border Patrol after a few days - creating a revolving population, returning to the welcome centre on a weekly or daily basis. Women give birth, children miss two years of education, girls can’t have a quinceañera (celebration of a girl's 15th birthday). US authorities found 19,000 children traveling alone across the Mexican border in March. It is a major test for Joe Biden as he reverses many of his predecessor's hard-line immigration tactics.