Agree, I use mine for future predictions of bank balances i.e. income vs expenditure (using a monthly average and estimates of "special" expenditure like new car, etc.) to try to ensure I never go broke in the long term, it is so easy to say it's only an extra drop from the ocean.
It was really important while I was not on a pension, now I know what I'm going to get each month, so budgeting is easier, underspend what you get and it goes towards inflation proofing your savings, and yes I'm one of the UK "frozen" pensioners.