Because they're f*ckin' different, aren't they. I basically end up pressing three-four different buttons each time I need to insert a certain punctuation mark, trialling a variety of combinations (no shift? Use shift? Different button? No?) and then I switch back to Estonian again, and that same thing happens.
The joy of being multi-lingual, I guess.
At some point I don't even remember what layout I have activated at any given time, so I keep having to glance up on the screen to see what language icon I have showing in the top right corner. Not that it helps, because I make a mess of typing anyway.