On our first trip last year my husband used his own manual wheelchair. He's not confined to it BUT is in constant and at times severe pain due to his conditions, using a wheelchair enables us both to enjoy our days out more no matter if its WDW or shopping. We used Disney buses a few times and yes felt guilty about getting on first BUT I stood rather than took a seat because that seemed fair. One time coming back from MK we couldn't take one bus as the driver hadn't got the keys for the ramp so had to wait another 20 mins or so. So, swings and roundabouts. There will be those who take advantage of the system but many, like us, who don't