What happens if your flight is not direct do you pick up the scooter in transit

I am buying a mobility scooter in the UK and bringing it back to Egypt where I live. I have never travelled with a scooter so do not know what the procedure is.

My flight is EgyptAir London-Cairo-Luxor and my baggage will be checked through

Is it normal for the scooter to be checked through too?
Or do I pick it up in Cairo and take it to the departure gate?
I could travel without using it and pack it in a suitcase, is this advisable?