I have a 5 door high up! ...
I am alone but was bored to take thinks onto the passanger or back seat.
So I ordered a 5 door car for the first time in my live (after more than 30 years of driving).
I LOVE my 5 door! The front doors are smaller when parking and the rear doors are excellent for parcels, shopping +++
I do NOT regret any Cent (Penny) I payed extra for the five door.
As far as I know there are "opening options" in the doors.
I never looked at it as it has been perfect for me. When I unlock the driver's door, all doors are open automatically. It is surely possible that the rear doors can only opened from outside (Child protection)??? Or there is a "speed lock" (locked while driving)???
Skoda has a pdf Citigo manual online. The functions should be the same in the up! ...