My question is if a wall is painted with satin latex paint, how many years will it last? Assuming, there are no “accidents” or scratches on the wall, how long can that color last before it will A) fade? B)need to be repainted?

I stripped a 30 year old oak table and then sanded the table with 60 grit sand paper to be followed by 120 and then 220 grit before staining.about 3-4 days after stripping,I noticed a sticky liquid area on the leaf. It covered an area aprrox.10″ by 6″.I sanded again