Would you still use these 20 year old paints & washes?

Back into painting after a ~25 year hiatus thanks to my kids wanting to get into Warhammer. I’ve still got some old kit left over including some paints and washes (there are more). They seem fine and apply fine as well. Any reason I shouldn’t be using them? It’ll at least save a little battering to my wallet! First effort at a Space Marine in that time included for reference, but I mostly used the paints in the introductory set.