Well done on taking up cycling. The more people who do the easier and safer cycling becomes for us all.
YABU, pedestrians should be able to walk down the pavement without risking being run down by a bike, but I can understand why you'd want to.
Some car drivers are deliberately twats around cyclists, many others just don't understand how to safely share the road with cyclists. It's appalling that this isn't emphasised more when people are lwarning to drive. Too many car drivers think driving is a right when it's actually a privilege which comes with a lot of responsibility.
It really doesn't help that lots of councils design infrastructure for cars and pedestrians then add in a bit of cycling infrastructure as an afterthought. Then they wonder why the infrastructure for cyclists doesn't work well and cyclists would rather take their chances on the road or risk a fine by being on the pavement. Sometimes cycle lanes are so confusing and change so regularly from being on the pavement to being part of the road that as a cyclist I end up on the pavement when I shouldn't be because the signage didn't tell me to switch to the road.
I can also think of numerous occasions when I've been cycling in a dual pavement/cycle lane (these are usually wide enough to accommodate both) and pedestrians have shouted at me for being there. I'm supposed to be there!
Then there are those pavements where there's a line down the middle and one side is for walkers and the other for cyclists. If cyclists are on the wrong side pedestrians go nuts but apparently it's okay for walkers to be in the cycle lane! Sometimes walkers in the cycling lane mean cyclists go in the walker lane as it's the only way to get past the walkers, then get shouted at by said walkers for being in the wrong lane!
Pedestrians often cross the road with their ears not their eyes. If they can't hear a car engine they think it's okay to cross, so they step out in front of my bicycle wheel then shout at me like it's my fault they didn't bother to look! Tbf there was one lovely lady who realised she was in the wrong and apologised profusely but she's the exception.
Then there are people who think that if a cyclist isn't wearing a helmet that any incident is their fault, despite evidence that it's safer to cycle without a helmet.
Rant over!
If your council does adult cycling lessons then they're often v good and will give you confidence around car drivers. They are plenty of small things you can to make it less likely drivers will act dangerously around you.