The TL:DR version is: I don't travel.
This is my daughter Celyn
Here she is in her wheelchair handing over cheques from sales of her book to the Children's Hospice I visit with her.
She's 5 days old in this one.
By my calculation I've been more than 10 miles from Celyn on 3 occasions in the past 11 years, all of those being swift trips to London which required enormous amounts of arranging.
Celyn has no use of her limbs, she's doubly incontinent, registered blind, she can't speak or eat or drink, she has epilepsy, she suffers from scoliosis, her hips are displaced and her wrists and one ankle turned in. She has no emotional filters, and she suffers multiple sources of pain. She wakes between 5 and 10 times a night and needs turning over, or changing, or settling, or all three.
She is also clever, interactive (once you learn her signals), enthusiastic about life, loves stories, and likes to laugh.
She spends a lot of time in hospital for various appointments.
My wife, who suffers her own significant health problems, can't lift her, or turn her. So all of that means I'm required to look after Celyn whenever she isn't in school. We have carers come to the house for respite care but I need to be around even then to help lift Celyn when she needs changing or wants to go for a walk (she loves walks).
So. I don't travel. I would very much like to attend conferences, go to events, have a holiday, even do book tours. But it's not possible. And this is why.
I'm not posting this to make anyone feel stupid for asking. "When are you coming to XXXX?" isn't a stupid question. I just wanted to have a post to link to in order to stop me having to paraphrase this every other day.