Unless your children will be going in/out of the room alone, not sure they need to carry their card on a daily basis. If they have that level of responsibility, then pockets or lanyards are sufficient.
If they are going to the kids’ clubs, I think they still issue them a wrist band? for access to that venue.
I used to wear lanyards. My favorites are a more narrow one. Castaway Club changed theirs and I didn’t notice as many people wearing them since the change to a wider ribbon with a heavy card holder. Or maybe they use MB, too.
I had several cruises where everyone in the cruise group (from here on Disboards) had special lanyards. Those were fun.
As a family, you could consider matching lanyards, like this. Multiple color options. Probably something similar at
WalMart, Hobby Lobby, Michael’s. About $1 pp.
View attachment 883961
And will you do a family tee-shirt? You could coordinate short and lanyard.
Truly, I basically use my card to open the door and get in/off ship. I bought two drinks last cruise - and was wearing Magic Band, which had to be taken off and handed over for scanning.
Yeah, men usually have pockets. Often our women’s pockets aren’t a secure location, too small.
I started carrying a small, lightweight, fabric cross body bag to keep up with phone, reading glasses and room key. You could hold up the purse to the card reader on the door and it would unlock.