I agree, with both keys present, by two different people holding a set each, then it not a problem I guess ?.
Unless you and your wife is miles apart of course !.
You need the second key preset, to be able to lock the first set in the car ???.
The boot is most venerable I guess, you flip the MG badge to open the boot, you put your coat in the car and leave the key in your jacket pocket, you shut the boot with the key inside.
You reach for your phone to unlock the car and it’s in your other jacket pocket ?.
“Rat’s”!.
It’s not possible to lock both sets in the car is it ? - surely not ?.
Don’t try it for God’s sake !.
There is also the unlock feature on the App to consider ??.
Oh …… but your phone is in the boot !.
“Top tip” - take one of key ? blades out of one set of keys and keep it in your wallet.
Better still, get a spare blade cut !.