Honestly, ADC's, not all mid laners can roam.
I play Azir, ALOT, and laning phase he's just straight up terrible in 1v1's without his turrets (except for a few exceptions). I play safe, enemy mid laner knows they can't kill me so they attempt to go bot lane. I can't just keep vision on them, it's way too risky because at any time they WILL kill me if I dare go down to the river. I call mia, and bot lane still attempts to shove the waves in, and then when the enemy Katarina goes down bot lane, they let Kat become 2/0. Now, they're just going to ping mia on me and ask why I don't roam. It's obvious, Katarina is going to kill me. End up having to mute everyone. ADC's, don't expect everything from your mid laner, especially when that mid laner is risking a death just so that you don't die.
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