Late night snack shopping.

I took my little sister last night late night snack shopping, probably 10 at night, she's 14. My SO wanted me to pick him up another two beers, which isn't an issue we had friends over so we were all having a good time. Mind you while I'm in Walmart we grab things for S'mores and other odd snacks, and scoop up the beer on our way out. I had already been in Walmart a few times yesterday for multiple beers runs for serveral people and had my sister with me each time, she's up from out of town. I got ID as usual, which I was expecting. But what my annoyance was when they wanted to card my little sister. EACH TIME. The first time I had went up there was around 10 am for bacon and beer for a neighbor. Within a matter of 12 hours I got carded four times and had to explain to workers that my sister is only 14 and I'm not one of them people that let a kid drink. Its like I have an almost 5 month old son, I would even let him drink that young. Fuck.