Maybe I've been fortunate, so far, but most drivers & particularly truckers, Do stay back 'til they're sure what I'm doing at junctions et al.
I reckon that's helped by the hi-vis vest my rucsack wears; Not me - the rucsack.
Obviously, I get the minority who just don't know whether to or not - shall I? - shan't I? - Oops, too late! But by the time they've invaded my space, I've generally sussed & I'm not there anymore.
You Really do need to concentrate all the time, even on country lanes, when the dear old soul coming round the next corner has Never encoutered a bicycle there before! And I believe that's a significant contributing factor here: Young ladies are well-known for being able to multitask - Their brains work differently to men's. I see it all the time: They're not driving along the stretch the car's on - They've already dropped the kids at school & .....
Quite recently, I'd walked my older grandaughter to school & was crossing the road, shorty -in - hand, when a young mum pulled out of a line of parked cars & drove straight through where we should have been standing: She'd dropped hers off, you see, & was in "gotta get the shopping done" mode: "Stupid old fart" written all over her expression.
The sad part is, the more intelligent they are, the more able they are to multitask.