I do have a big pram and while there are some shops I don't go to any more it is not a big deal for me.
I hate that the accesable buses don't come because the other kinds tend to drive past me or the driver will sigh while I try to sort out the nappy bag and put down a pram while holding a baby under my arm. Then I have to get all that stuff onto the bus. At the risk of sounding like my grandmother .... when I was a girl the bus driver helped you out by holding something or putting the pram down for you and carrying it onto the bus.
I am sick of seeing massive prams for tiny babies & I am a mother of two & we survive with a small stroller. The world doesn't resolve around 4WD prams
I note that you have a huge 3 wheeler that you take out walking. The reason I have the pram I do and it is a big one is because I walk everywhere because I don't drive. My son also has a higher chance of having ASD so a rear facing option is really important to me because of some early intervention theories. What would you suggest I do? I also have sciatica so after walking to the shops and walking around the shops a sling is not an option. Just because you don't have the same circumstances as someone else does not mean that they a lesser.