Fixed side steps are the way to go: always there when you need them, can't see them once in the car so not a problem that they haven't retracted, can't break down - get stuck in, better ground clearance hold the front mudguard in place, no extra switches to fiddle with or fix,...nothing to deplore about them  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Same could be said of a tow bar, but personally, I'd rather not see them when not in use.

No, no Alistair, towbars should always be visible...I live in France, I would love to have one in front also.

to prevent 'touch parking' ?

In Manhattan I've seen people put old carpet over their front and rear bumpers when they have parked. Presumably another "touch parking" city......  2017 4.4 SDV8 Autobiography
2012 4.4 TDV8 Westminster - Gone, but not forgotten