Re: polished porceline tiles in kitchen???
we have them all over ground floor, about 120sq m, and upstairs, about 50sq m.
Fabulous when clean, not so when not! However, this is greatly dictated by the colour of the tile. Dark ones harder to keep clean, and it's not that you're mucky, it's just that they show up everything, smudges, finger/footprints, especially viewed from an angle. Big tip here is to use slippers/sandles !
Light colour ones easier to keep.
We have 2 kids, and there are no issues with slips/trip/falls - they've reached the ages of 6 & 9 so far without issue !
Would do, again. Actually, we did. This is our 2nd all-tile GF house.