Mick and Maggie, whichever of you it is...
You're the one that started a thread asking if it was always like this, well it seems you can give as good as you get.
You have been presented with countless arguments and even some analysis that your suggestion would add expense (even your own proposal suggests the passport might cost £25) to operators and hirers, then change you tune to the effect "the good yards are this already". If that is true then the charge for your blasted piece of paper would be nominal, but I would venture that no yard is issuing 2 hours of instruction to anyone, because that would mean you'd have to have a member of staff per boat on turn round day. fine if you've only got three boats, the cleaner, the mechanic and the boss can cover it, but not on if you've got twenty.
You have basically decided that you would feel more comfortable (or more smug) with a piece of paper in your hand, and you are refusing to listen to anyone who says it's not a good idea because... You have not come up with any credible evidence of there real benefits to this idea, and freely admit that a boat owner doesn't need one. Why not? If it's such a good idea, because they use their boats more and have more experience? dream on, people buy boats who've never hired and use them infrequently, and except for stag party type hirers I would day most of the worst boatmanship I have seen has been from private boats.
Never mind have you hired boats, have you any idea of the economics of the industry? I have, as part of my job is to analyse the economics of tourism, and suffice to say the profits are borderline, that's why no hire boat companies are in themselves plc's, and Anglo-Welsh's attempt on the alternative market went belly up. Do you even realise that, if a company takes a booking through one of the big agencies, the see little more than half the booking fee? of that estimated £1k, £175 disappears in VAT (and yes they can claim VAT back on other things, but being labour intensive their biggest cost labour, is non-vatable) and a significant slice then goes to the agent (typically another £200). The big groups have economies of scale, the smaller companies last on fairly thin profit margins and are often in if for the love of it, and don't tend to use agencies.
In response to your other thread we don't pick on newbies per se, but we do tend to have major irritation (on both sides) with people who stick lear like their view no matter what arguments against it are presented.