Okay, Robo, I'll bite. It seems to me like everyone misses the main point in all these bus debates. That point being the obvious to me - "Safety first." Geez, folks just a little common sense. If you see someone whose safety may be compromised because it's difficult for them to balance on a somewhat twisty, bumpy bus ride, for goodness sake do the decent thing and offer up your seat if - and only if - your own safety is not compromised. This means that if you have two good strong legs and are not carrying a young child or have some similar situation you probably should get up. Your comfort should not supercede someone else's safety. When mommy falls and baby is hurt are you really gonna sit there all comfy in your seat and say "Oh, well...not my fault?"
So to answer the question above. No, waiting for the next bus does not solve the problem for most folks. What it does is just allow you another opportunity to do the SAFE and courteous thing. It does solve the problem for me. I'm a grammy walking with a cane and usually traveling with my granddaughter who is now 10 and can pretty much hold her own on a bus ride. But when she was younger I wanted her safe and sound in a seat. Waiting for the next bus allowed us to board in time to get seats. Then if the bus filled up, we'd offer her seat to someone doing the balancing act and DGD would plop up on my lap. Not exactly comfortable, but geez if I could make it thru a whole day at the parks, then make it to the bus stop, surely I could endure a few minutes of minor discomfort without letting it ruin my day.