Climbing Snowdon

My dad just text me to ask if I'll climb Snowdon with him. I said yes straight away.
The logistics will need sorting
For example how the hell do you get a wheelchair up Snowdon?
How many days will it take, considering he goes to the loo at least once every hour and stays there for ever.
When and where does he intend to nap?

What if we get stuck...
But I'm saying yes because he's my dad
He did it when he was much younger, healthier and stronger. He did it with my brother.
More importantly, though is that it means he's living. He's doing something to add value to his life.
I feel proud of him right now and I haven't really felt that for a while.