If you have to wear this just to ride a bike, many won’t
If you can just do it in normal clothes, many more will
funnily enough when I google searched images, these came from another post on stw. https://singletrackworld.com/forum/topic/why-do-runners-wear-hi-viz/
Its a bit chicken and egg, we need more people to be riding to justify the need for better facilities to get more people riding.
As for drivers being dicks, well most are ok, but even those ones pass too closely, or can get distracted, if we get more people riding, maybe we can justify building separated lanes, so per Phil, lets do our best not to screw this opportunity up.
Of course many won’t stick it out, but many will, and cities are already reallocating road space for cycling or wider spaces for pedestrians. There’s a chance some of that might stick around in a permanent way, especially if this covid situation lasts, or people are unwilling to get back on a bus or train.