Should I Play Jhin Mid?

That depends. Do you enjoy being 100-0'd by Zed/LeBlanc/Fizz/Talon every time you come to lane?

Then sure man. Play Jhin mid.

He has range, but barely good mobility as an ADC. Maybe his last hit gives him small movement speed, but can't run easily.

You don't pick your champion when you queue up, you pick possible roles.

Did you get bot? Then Jhin is a good choice. Did you get mid? Jhin is still ok.

Imo i would not do it as a main. He has more bad match ups mid and your gonna want to have a solid jungler. Also your likely to need ap in top or jungle to avoid a lopsided team comp. Try lux, xerath, or ziggs mid if you enjoy super long range champions.

Mid lane he has a lot of counters, so I would never pick him blind. I would try to only keep him mid as a counter pick to an opponent that won't jump on your face and delete you. Also keeping in mind that you then really want a top/jungler with AP damage or you have a different problem.

It actually kinda bothers me that everyone isolates Jhin into the ADC role.

My question for you is are you planning on playing Jhin mid as an AD or AP build, ... or hybrid. It seems like people forget that Jhin has great AP scaling with his Q and E. And as for a hybrid build, .. Nashor's Tooth and another good AP item (maybe something to help with mana), along with a Zeal item or two, and you will still have a decent amount of both AD and AP.

As for safety and mobility, vision control from both you and your jungler will be very important. Good positioning is always important no matter where you play Jhin. Use your traps as pseudo-wards and practice your "stun and run" skills.

Jhin mid has a pretty different feel, you wanna focus on spells more than AAs, so rushing IE is kinda meh, better of getting it later and getting ER and a zeal item, maybe also yomuus first. The thing with Jhin mid is if youre in range to AA them, youre likely pushed, and you get screwed really hard, it almost always means a flash burnt at best