Both my husband and I are engineers; our consensus was to hire an electrician to change the chandelier that we needed a scaffold to reach; before we had it installed, we found LED bulbs that fit so we wouldn’t have to get a scaffold to change light bulbs while we’re living in this house.
I do hate that there are so many different types and sizes of bulbs and glass covers for existing lighting, you practically have to go online and search for hours or buy new fixtures to get the sizes to work out.