Is it fine/reasonable to get rid of pull-cords in a disabled adapted bathroom?

My mum had her bathroom modified to be disabled friendly about ten years ago, due to having MS and a bathtub with shower screen becoming a dangerous option.

The contractors were local authority sourced, and did an OK job. Tiling is great to be fair (though ridged so she can't use a suction-cup mounted tray for shampoo, body wash, etc), floor not bad though I feel it needs replacing.

But they made some odd decisions that seemed to be based on wildly outdated codes/regulations.

Firstly they put separate taps on the sink, which hasn't been a legal requirement for a LONG time. I successfully argued against this on the grounds it was a scalding risk and she couldn't wash her hands properly, and they replaced them for a mixer tap, including new sink to go with it.

But then they also included three pull-cords - one for the light, one for the shower, one for a (way underpowered) extraction fan.

The shower one nearly caused a house fire a few months ago - I was in the loft and noticed a fishy smell (yes, very funny) and it turned out to be the switch the shower pull cord connects too. Replaced by British Gas Homecare, but the other day it simply broke and won't turn on.

I've isolated it at the fuse board and have had a nightmare with British Gas, but engineer finally coming tomorrow.

I'm thinking though, is there really any need for these cords at all? She can use a light switch, way easier than a cord for her which she can struggle with. Shower surely doesn't need an isolator if it has its own fuse circuit at the main fuse board? Fan ALSO has a separate switch above the bathroom door - it should just come on when the light does, but that could be used to turn it off.