Flowers having a child isn't a "lifestyle choice". It's a biological imperative.
Breastfeeding a baby isn't a "lifestyle choice" it is what breasts are for. It's part of our basic biological design.
Science has happily given women the choice whether to conceive over the last 100 or so years.
Science has also given women the choice not to breastfeed, saving babies lives in the process.
Not having babies and not breastfeeding is the "lifestyle choice" not the other way round.
Have a quick google "historical representations of breastfeeding" - there are loads of very old paintings and sculptures of (what you and Dubby would consider) 'indiscreet' feeding. Not a cover to be seen.
Breastfeeding in public is normal. It has always been normal.
It's so normal, and so important for the health of our nation that it is enshrined in law.
It's also normal for a Mother to interact with her baby while they are feeding: stroking their face, maintaining eye contact, talking to them. Soothing them.
A cover completely negates that.
I fed twins for nearly 18 months. I fed through mastitis, thrush and agonising cracks. It wasn't easy, I had very little rest or sleep. In the early days I was often in pain and feeding through gritted teeth. I wasn't "making a point" or any kind of political statement, I was just trying really hard to do my best for my babies.
My whole family has breastfed, most of my friends breastfed, I see lots of breastfeeding women around my local area, I have never, ever seen 'entitled' behaviour. Just often exhausted women doing their best.
I don't understand, really just can't fathom, how a women simply feeding her baby arouses such ire.
If you aren't comfortable, that's OK - but own it as your issue, not the feeding mother's.