What is now the point of these channels

I think things will change and one way is to have the lot encrpted but with a catch, in order to have them activated you pay say £5 a one off fee with the use of your switch/credit card and this will then prove that you are over 18. Or better still every single SKY Box has a slot for an interactive card, couldn't the babe channels not simply be available by the use of a card into this slot, again you register your details to prove you are over 18 and then this is sent out to you, you could simply call it an adult card. I know that all these idea's have more than likely been posted previously but it's time to look at the situation from a different angle that could make Ofcom no more of an obstacle.