Peeling paint

What do you think is the mostly likely cause of this? It is all over the house…
IMG_1271 (Small).JPGIMG_1271 (Small).JPG

Moisture. Is that plaster or sheetrock?

or latex over oil…how old is the house?

That is sheetrock and house is 1999.

Blown ceiling texture without sealer/primer on sheetrock.

That’s what I thought too. Thanks for your help.