Have a friend - both with kids at same school. Mostly get on fine, but I find the way she prioritises her phone over everything/everyone else so rude!
So, we'll be in a cafe having coffee and catching up and her phone will always be face up on the table. If I'm chatting to her and she's gets a text she'll immediately check it and start replying. I've now started pausing whatever I was saying and waiting for her to finish, but sometimes she just looks up and says 'go on, I'm listening' when she clearly isn't!
She even interrupts her own conversation to answer texts.
I've asked 'has something urgent come up?' But it never is - no, it's just her mum, or her sister, or partner asking something.
Why do people do this? It's so rude.