I’ve been spending a great deal of time walking this past few months, in an effort to get fit - with some success. And personally, when i am a pedestrian, I detest unnecessary speed limits.
Nothing and nobody will convince me to cross in front of an oncoming vehicle. It’s hard to assess a vehicle’s speed with any certainty and anyway, it might be unexpectedly accelerating, and it’s hard to be certain that the driver has seen me, or cares. So I wait til it has passed then cross behind it, no matter what the authors of latest HC may say on the matter. Same applies if I need to step onto the roadway, say, to pass some obstruction.
And the lower the limit, the longer the vehicle takes to pass, simply causing a frustrating delay in getting across or along the road . This applies not just to 20s, but also to many 30mph roads that could safely be 40 or higher. I’m much happier if traffic is allowed to pass at a sensible speed, though I try to give a friendly smile and wave of gratitude to drivers and riders that move out a little to give me more space when the footway’s narrow or non existent. Surprisingly perhaps, I generally find white delivery van drivers to be most courteous in that respect, with SUVs around school pickup time being the most scary.