Why Don’t Android Games Have Instructions?

My husband and I have a couple Android mobile devices and often enjoy casual gaming on them. We’ve noticed over many various downloads, that a big chunk of games and apps do not come with instructions, or even a link to an online manual. What happened to in game menus? What happened to tutorials or even just a couple pages outlining the objective and controls? It’s maddening… I have even had to spend big chucks of time searching online to figure out how to play some of them. Come on devs…. give us a manual or instruction page so we can start having fun!

What do the various lines you cross over in Ice Cream Jump say… I pass by them too fast to see. What do the buttons and controls in the adventure game Yesterday do… it took us a while to figure it out by experimenting. Etc, etc.