Kids are often smarter than we give them credit for. My son wanted to be out of Goodnites desperately, especially once he got older than 8. It got to the point we had to check him before bed to make sure he had one on because he didn’t want to wear it.
When he woke up dry he would jump out of bed and race for the potty so he didn’t have an accident in his Goodnite. However, if he woke up with a wet Goodnite I know for a fact he would do his morning pee in it at the breakfast table. Not only was it evident by him not racing to the potty when he got out of bed, but I knew he was peeing at the table because he always froze when he was doing it. He would just stop eating/talking for about 20 seconds. A couple times I asked him, “Did you just pee?” He would get this sheepish grin and admit it. I always told him it was okay because he was taking it off after breakfast anyway.
What was funny was when he would wake up and start running for the potty, only to slow down and head down to the kitchen instead. I always assumed he either couldn’t hold it and once it started coming out he just gave up, or realized halfway there that he was already wet. Either way, he was only ever bothered by the Goodnites at night when he had to put them on. He never was upset about a Goodnite that was wet in the morning. He did always excitedly tell us when he kept it dry though, and I thought he was going to do cartwheels when he woke up on his 7th night in a row dry.
Aside from the couple times I asked if he was peeing, we never asked in the morning if he was wet. If he went to breakfast without stopping at the potty first, there was no need to ask! My point is, I think my kid figured out that if he was already wet or wetting when he woke up anyway, he might as well be lazy and save a trip to the potty - he was going to be taking a wet Goodnite off either way.