Before the 1970s in the US, meanwhile, only 1% of poll respondents thought having just one child was best. When Sandler became a mother in 2008, she says, "I found myself with this kid who I was crazy about". Well aware of issues like the 'motherhood penalty', having one child seemed like the best way to have it 'all' – or as close to it as possible. … Why is the world telling you that, if you make this choice, you're a terrible parent, and you're a terrible woman?" (There is, in fact, no evidence that only children are any less well-adjusted or successful than those with siblings).