Two different people have said this to me in the past week regarding SIL1. I mentioned that I had bought books for my MIL and SIL2 for Christmas, and was trying to think of something else for SIL1 since reading isn't a hobby of hers. And both people I said it to said, "Well, she doesn't have time to read." Now, granted she has 1-year-old twins so I'm sure she is pressed for free time, but she just isn't a reader, she never was. There's nothing wrong with that, it's just not a hobby of hers so I was trying to think of a different gift for her that would be in line with her hobbies. I have two small kids too and I read every single day, because it's something I enjoy. I dunno, I know they probably didn't mean anything by it, but for some reason it irked me to hear it twice like that.
It reminded me of a woman I work with who I call a "just you wait"er (they're cousins of the "must be nice"ers ) -- she's kind of bitter, and when she would see me reading in the break room (pre-kids) she would always say, "Oh, just you wait, you won't get to do THAT anymore once you have kids." Well, my kids are 6 and 2 now, and I still read every day. So, I dunno, I'm just annoyed by the whole thing. Like I must have mountains of free time, or such an easier life or something, because I make time to read (and sew, and bake, and do the other things I enjoy instead of being a martyr and then complaining about it all the time). Ugh.