Comment Re:What if you don't want or need credit? (Score 1) 50
I live in the UK, and just tried it with a debit card. It doesn't allow me to access adult games, it still says:
"Under the UK Online Safety Act, Valve is required to verify that you are 18 or older before accessing mature sexual content. If you wish to do so, please add a valid UK credit card to your account and afterwards update the Mature Content Preferences."
I don't have a credit card, so can't try using one. An odd scenario is that my Steam account is from 2008, so will itself will be 18 next year, and I didn't set it up when I was a year old.