query: What is the average age that people have their first child in the UK?
passage: Advanced maternal age
In Western, Northern, and Southern Europe, first-time mothers are on average 27 to 29 years old, up from 23 to 25 years at the start of the 1970s. In a number of European countries (Spain), the mean age of women at first childbirth has crossed the 30 year threshold.[2]
passage: Somalis in the United Kingdom
According to the 2011 UK Census, the Somali-born population in England and Wales is on average young. 79 per cent of Somali immigrants were under 45 years of age compared with 58 per cent of the general population. Partly due to the Somali-born population's younger age structure, 47 per cent of Somali immigrant families included three or more dependent children compared with a mean of 7 per cent for all families in England and Wales.