In the UK, nearly 25% of adults aged 20-34 live at home, according to a recent piece by the BBC. That percentage has been increasing for 15 years.
The length of time those adult children stay at home has also been increasing, along with the cost. The average stay at home is now 10 months, up from 9.7 months last year. Parents spent about £1,640 on extra costs like water and electricity, along with £1,886 on redecorating and upgrading wi-fi.
Read more: Learn my #1 tip for financial planning when adult kids move home.