DLA is vastly under claimed.
I have sufficient disabilities to qualify, however for one I haven't got the emotional health and strength to go through that for me, I have enough to deal with when it comes to the kids. I ended up that way being a Carer and saving taxpayers hundreds of thousands of pounds a year.
And secondly it will shortly be the case that you can't be disabled AND a Carer,even though many of us are both.
There hasn't been a disability 'register' held by local authorities since the 90s.