Most folk I know of my age 2 maybe 3 kids but all the 30 year olds I know no one rushing to have kids or just can’t afford them
Not just on the UK.
German birth rates are falling. Most of our clique have one kid,a few with two but only those with twins have three (expect Stefan the Baby Maker with his orthodox Hungarian missus who has pumped out five on top of his eldest from a previous marriage (eldest daughter is one year older than the new missus!)).
Few people have the time, the money nor the inclination to raise more than one kiddo.
Kindergarten/creche costs are over 800€ average in Munich.
There are few couples that can to cover their basic costs between the two of them, let alone one staying home to look after a baby.
Italy’s birth rate is even lower than Germany’s. Amongst my friends here I in Italy know of only three couples who have two kids. Three that have one, but the majority haven’t even entertained the idea and have decided against having kids.