I have social anxiety and work for a mental health charity. For many people, a quick reply isn’t just a quick reply. I like to think about my messages, even something as simple as ‘I’m busy text you later!’ would need thought for me. I write and read everything back a few times before I send - it’s time consuming. Sometimes I feel like I don’t want to be social - even on WhatsApp, it’s not on you, it’s me. It’s not rude. The fact that people think like this is what fuels social anxiety. It’s so judgmental. I have a friend who also suffers social anxiety, we can go days without replying and only reply when we feel able to. We never judge. We understand. And I’ve told her never to apologise for not responding sooner. If something is urgent, ring or say. And if a friend does need me urgently I’ll of course always be there. I never expect replies either. People are busy, they have kids, jobs, housework, families, worries, stress, expecting an instant reply is just sometimes not possible. I am in my 30s and have been friends with my close circle for 10+ years and luckily they are very understanding and most think like me, we’re all friends, we don’t need to reply straight away. Also just to say I do have my moments of being extremely social and will send about 500 messages in one go - there is no inbetween! Also just a thought, but if someone always had to reply instantly how would you ever end the conversation!? How would you get anything done!