In Ikea cafe it's a fucking nightmare. Find a seat, it's busy but there are seats. A little girl, about seven, is sitting at table for 4 next to me. A couple in their 30's and a woman a bit older sit beside her. 5 minutes pass and a woman comes over. The girl was hers obviously waiting for her mum or saving the seat.
The mum said something like 'she was sitting there' and they all started mouthing off. I felt sorry for the girl she must have felt quite intimidated with 3 grown ups just sitting down.
Regardless of what you think about saving tables I doubt they would have done the same to one of the many adults doing just that.