I'm only SLF, but there are a couple of things here that I think are the author being a jobsworth and it finally prompted me to register and delurk (I've been reading for about 15 months). Sorry for butting in!
Number one, stop breastfeeding your child in your seats without covering your boobs. No one wants to see that. Dont you have any dignity?
There have been more and more campaigns in recent years towards preventing nursing mothers from feeling restricted wrt breast feeding, in some places there are hefty fines for preventing public breast feeding. Every time someone makes a new mother feel she's doing something wrong by breastfeeding it sets back the work in convincing the public of the health benefits; I think that's more important here.
If you are an old lady, I will gladly help with your luggage. If you are a strong, capable man, I wont. It is incredible to see some of these strong men getting onto the plane and expecting me, one of the tiniest ladies allowed to be cabin crew, to put up their heavy bags
This conflates two issues. One is the problem of inappropriate cabin baggage, that pisses all of us off. I was on an Air NewZealand flight a few weeks ago and a very loud Londoner got on with a heavy bag that filled an entire bin on the 772 as well as two duty free bags. I was a good 10 rows away and even I heard her say that it was her only bag; nothing in the hold. That's absurd, the people that do that annoy me so much, they deserve no help getting their bags up.
When it comes to not helping apparently strong men, I really think that's a bad mindset to get into. The vast majority of people you deal with will be in good health, but they won't all be, and those that aren't often won't want to make a big deal of that fact out of either pride/embarrassment or fear of being judged not well enough to fly, or some mixture. There's no problem with saying something like "I'm sorry, that looks too big for me to manage, too", but please don't assume that a man in his 20's is automatically in better shape than a woman in her 70's, even if that's the case 99 times in a hundred.