The first time we visited Grand Cayman was on the day before Sabrina's 5th Birthday (I posted a photo yesterday). Tendering wasn't an issue. Just a free excursion

We actually went back and forth to the ship a couple times (No, you can't pay for lunch ashore with a
DCL Key To The World Card

)
If you like, skip the excursions but go down and take a peek at the tendering senerio. If it looks like fun... go ashore and wander the street by the harbor for an hour and come back. The Tortuga Rum and Tortuga Rum Cake samples are to die for. It's what fills our suit cases. (Sometimes DCL has limited flavor choices in the duty-free shop onboard)
In 2009, I picked up some deals on top brand make-up in a beautiful harborside shop. You may not want to ask my DH about me "forgetting my make up at home" on my BFFs DCL wedding cruise, re-buying EVERYTHING then finding it in a suitcase pocket the night we packed to leave the ship.
I agree
I understand. With a squirmy, wee babe tendering could be unnerving.