Absolutely nothing - if they’re not used, they’re not costing anything.
That was my point, Maggie. I doubt many millionaires use the bus regularly. I know some will, if the service is regular and convenient, but these days that's a rarity. Even if they do, buses are rarely full, so they are just taking up a seat, as opposed to actually costing real money.
Whiff nobody gets their late husband's pension now, as new pensions are awarded in people's own right, based on their own contributions from NI or benefits. If you were on the old pension (which could be inherited) you would be getting a lot less than 48p below what you get now.