At first I thought this is the most pointless petition ever. But then I realised the whole point of it is to promote their website. It's kind of sad to see petitions being used in this way.
Plenty of people have very meaningful lives outside of their family and it is nothing to do with chance. It does however require a level of effort that a lot of people just aren't willing to give.
I would love to use this but the pricing is a bit of a problem. The Visa credit price per transaction is only a little bit higher but almost half our transactions are Visa debit which are charged by our existing provider at a flat rate of 34p + 10p for the gateway. The Stripe cost for a £60 transaction would be £1.64. The pricing needs to take into account the higher rate of debit card usage in the UK.
That sounds sensible, but now you've just broken it for every country that uses comma as a decimal mark.