Perhaps I am. I have to say, I feel quite sad that so many people might mind since it's even in my own garden. Posting in AIBU so preparing myself for a flame 
I have been in the garden with just bikini bottoms on today, playing with my 6 month old in the paddling pool , relaxing, etc.
I am almost 100% sure next door wouldn't be able to see anything, unless the children jumped on their trampoline and caught a glimpse. But they're impeccably quiet and I've never heard a peep from them (I think they're both no more than age 8).
We do however have a bit of a gap at the back where you can sort of see onto the huge field in front of us, where some little boys ride their bikes, lots of football training goes on, people walk their dogs, etc.
But it is generally a very quiet area and apart from when football is taking place, never really anyone there!
DH has been very
and thinks I should at least be cautious and cover when I'm facing a certain way.
AIBU? I have been quickly whipping a Muslin over myself sometimes but as the day has progressed, I've started not to bother.
I'm really comfortable just being topless and it is the absolute norm where my family are from.
I breastfeed in the garden so that makes that easier too. I know I should probably consider other people but it is my own personal garden so I think people can look the other way if they're not wanting to see, can't they?
I'm a B cup so you wouldn't see any swooshing around. Not much to see really.