OP do you have a dog?
I must admit I am only so carefree when it comes to meal times with dd because I don't have to clean up every bit of mess. I let the dog in to clean up the bulk of it (he thinks it's Christmas) then either spray and wipe or bacterial wipe over the rest of the floors.
The high chair gets a good spray and wipe over and dd gets a bath after dinner or hands and faced washed with a cloth during the day.
We also use those crazy big painting smock type bibs with long sleeves to protect her nice clothes. Pjs I don't normally worry about so much..
This is a normal scene at breakfast since she has decided cereal with raspberries tastes great but spoons are awful things, she would rather dip her fingers in and go for broke.
It's messy. But she loves her food and will try just about everything. So I'm pleased she isn't fussy, BUT we don't go out for breakfast much..