I'd have to say the wall looks perfectly fine to me. A fine example of "English Garden Wall bonding"
This is very confusing. Do you want the ivy or not?
Maybe I need education in how to maintain this so if does not become a problem for the neighbour and my guests.
the ivy looks real nice when full bloom. I’d like to keep it but how should I manage this if I do pls.
Looking at those pictures you are going to have a ghastly time getting rid of them.
When the plants are dead the stems and roots will rot away in time. You can then seal the gap between path and wall to prevent other seeds from sprouting in there.