What should happen to money in "dormant" accounts?

"Banks, building societies and National Savings & Investments (NS&I) should be forced to hand over the money in dormant accounts to good causes, according to MPs.
The Government intends to launch a scheme to use the estimated £500 million in forgotten accounts to boost charitable causes next year. Banks and building societies will be able to choose whether to take part...
Under the Government’s plans, banks and building societies would hand over money in accounts where the customer has made no transactions and no contact with the institution for 15 years. The money would be used to fund youth projects and financial education and inclusion. Customers who track down a forgotten account will always have the right to reclaim their cash." (The Times)

I have three main issues with this:

1. Why after just 15 years? 15 years isn't really all that long. What if it is a savings account for a child, set up at birth and to which they have no access until they are 18? By the time they reached that age, they money would have been taken away. And the MPs want this to be reduced to 10 years.

2. What are "good causes"? Define them. What are "youth projects and financial education and inclusion"? To start with "inclusion" is extremely PC,and the entire list is very vague. Considering the sort of charities that were considered "good causes" by the Lottery quango, I don't hold much hope for this money actually going to go for good use anyway. And who gets to choose which "good causes" get this money?

3. Being a "voluntary" thing, it is absolutely pointless and impotent. Banks and building societies aren't going to sign up to this unless they have to. They're not stupid, and aren't going to give up £500 million just like that.

It isn't any of the government's business anyway, really. The money may be "dormant" but that is really the choice of the person who earned it, and paid taxes on it as they did so. Whilst I don't particularly like the idea that the banks benefit from people who let their money go dormant, I don't think that it is anything to do with the government either! Maybe after 50 years have passed, and the owner of the money is most likely dead then the government should get it, but not before then.

Source: The Times