I'll concede, at this point, that words like "privilege" and "honor" do a terrible job of getting across what I was trying to indicate and may constitute an outright romanticization of caregiving that's potentially dangerous to those cared for. Words like "duty" are, yes, better in this context. I reacted badly against the way you framed saying that because I thought it constituted an unacceptable defense of Famous Mortimer's utterly awful position. (I'm conceding this after a discussion on the subject with a friend who's in a situation similar to mine as both disabled and an occasional caregiver to other disabled people, btw.)
It's okay. I had hoped my opening salvo noting that 'the elderly and most children for that matter' are technically a 'burden' by extension of the argument would have let you know exactly what I thought of FM's position. Sometimes you have to call a 'spade a spade' simply to get anywhere in a system that will assume that because you 'do' you 'can' (like 70 year old women left to lift their adult sons into bed despite not having the strength to do so being essentially ignored by authorities because they happen to say it doesn't bother them)