Good for you! I think it's fine.
Here's a question. Would you let them wander
Disneyland by themselves at that age? Of course. Letting them have their own cabin is somewhat similar. Of course you'll be checking on them, that's part of what makes them good kids to begin with! I saw your earlier posts, and can tell you raise your kids right.
To answer your question, yes, on a limited a basis, I would let them wander Disneyland by themselves, and meet up later at a designated place and time. We also split up at the shopping mall and meet up later at a designated place and time. They are 13 and 14, not 1 and 3.
Also, they both walk about a mile to school each morning and a mile back from school in the afternoon all by themselves. This summer, they rode their bikes 2 miles to camp in the morning and 2 miles back in the afternoon.
Kids need to be very well aware of, and informed about the dangers in this world, not totally sheltered from them so that they never learn a lick of street smarts or any survival skills.
If you looked up in the sex offender registry for your neighborhood, you would be amazed who lives near you, maybe even right next door. Kids are more likely to be in danger from the offender who lives a couple houses down from you than they would ever be on a cruise ship. At least on a cruise ship, everyone on board is accounted for by name, ssn, dob, cabin number, and home address. You can't account for anyone who happens to be driving by your neighborhood when your kids are outside playing, or walking to school.
I'm just not the "nervous nelly" type. That's just not me. I've taught them as much as I can about safety and survival in different situations, and there comes a time when they have to start becoming independent and thinking for themselves. Mommy won't always be there for them.
I'm not trying to put down anyone else's way of raising their kids, just trying to say that everyone's different, and we all have our reasons for parenting the way we do.