Frankly the possibility to scam this is probably 100 times less than the huge companies who have furloughed their staff while still pressuring them to work, or furloughed one half even though their business hasn't been severely impacted and simply put the workload on the other employees so just cashing in.
Of all the covid financial initiatives removing the barrier to self isolation is the thing that costs the least and more directly affects the virus spread.
Considering how low the rates are for isolating when you have symptoms or have come in close contact with the virus this is needed.
Other countries already use a system like this and it works well.
The payment incentive they gave to travellers needing to quarantine didn't work, many people didn't even get the payment, so there's no guarantee they'll get this payment.
How do they police that people will still isolate? They can't and won't, leaving this incentive open to abuse.
For blatant rule breakers they get a £200 FPN, but whilst breaking the rules and possibly catching covid they get £500 towards that fine now.
Over 3 million people haven't had any financial support through this, that money could be helping them!
Most importantly, where the bloody hell is this money coming from?!
It plays in to the hands of conspiracy theorists who have said for months the government won't ever allow normal life to return.
I think the government have given plenty of other reasons for people to be thinking that, like extending furlough again, and the underlying issue of the last rule of being able to open up being 'as long as we get no new varients'. There will always be new varients, its a virus