I thank you for the comment as the moderator. I'm not trying to be combative, but my feelings are if you don't experience limited mobility: DON'T ANSWER QUESTIONS REGARDING LIMITED MOBILITY!!
I've always wanted to travel with DCL since 1992 when it was the BIG RED BOAT!! I could never justify paying that amount of money as a single person. BUT after 2 years of the lockdown and losing my younger brother in 2019, I'M GOING TO LIVE AND ENJOY MY LIFE TO THE FULLEST!!
People who don't have limited mobility themselves may have very valid opinions to offer, based on the experience of others they have traveled with or on information they have collected over the years. Please don't discount what they have to offer just because they themselves do not have limited mobility.
Plus, unless someone explicitly says the don't have mobility issues, you have no way of knowing if they do or don't. Nor do you know if they travel with someone who does or doesn't, or have in the past.
So, have you considered WHERE you want to cruise with DCL to ?? Someonw telling you about great excursions they had in Alaska won't help much if you have your heart set on sailing to the Bahamas.
I suggest you browse the DCL website and take a look at their destinations and port excursions for their destinations and get a feel for where you want to sail. You can then ask more focussed and informed questions.
Finally, a couple years ago, DCL announced a partnership with Accessible Travel Solutions that allows Disney Cruise Line to offer 39 limited-mobility Port Adventures in 26 countries; see: https://disneycruise.disney.go.com/port-adventures/new-port-adventures-accessible-travel-solutions/ I have not read all the details, but I believe they are wheelchair accessible, but may not necessarily be ECV accessible -- you will have to read the "fine print".