Not sure if right thread--OK Oops I thought I was in iPhone thread--Mods please move to correct subforum-- 

I read how to run my wife's iPad Air off my iPhone on Cellular. Only want to do this twice a year for only 3 days each time--Vacation.
Maybe I can have ATT activate her iPad for one Month for 10.00 on Cellular like I could on TMO. Haven't asked that yet.
I have 15gb Family Share Plan.
I was going to tether and ran into a concern that if I screwed up her iPad she would kill me--
I would have to sign her out and sign me in to my iCloud acct on her iPad while I am signed into iCloud on my iPhone.
Currently on her iPad under Settings/iCloud she has her Gmail acct with a grey circle to left with her initials in it. At bottom of page I can sign her out. If I do that will it remove her Gmail acct name at top and let me sign into my iCloud acct. Then tether then sign out and let her sign in. I don't want to have two users permanetly on iPad or mess up anything on her iPad.
Thanks
I read how to run my wife's iPad Air off my iPhone on Cellular. Only want to do this twice a year for only 3 days each time--Vacation.
Maybe I can have ATT activate her iPad for one Month for 10.00 on Cellular like I could on TMO. Haven't asked that yet.
I have 15gb Family Share Plan.
I was going to tether and ran into a concern that if I screwed up her iPad she would kill me--
I would have to sign her out and sign me in to my iCloud acct on her iPad while I am signed into iCloud on my iPhone.
Currently on her iPad under Settings/iCloud she has her Gmail acct with a grey circle to left with her initials in it. At bottom of page I can sign her out. If I do that will it remove her Gmail acct name at top and let me sign into my iCloud acct. Then tether then sign out and let her sign in. I don't want to have two users permanetly on iPad or mess up anything on her iPad.
Thanks