Locked in the moment how? BLT is very literally the only resort today that you can walk from. There is a small assumption but VGF and POLY will also be two resorts you can walk from (small assumption as there is always a chance Disney cancels finishing construction).
CCB, BRV, and REF will also need to take a boat (unless they add a skyliner) to Magic Kingdom.
Don't try and attack me for not thinking of the future. I am hopeful but my parents live on a bike trial in the country and walk/bike every day during the summer. If they or I get to a point of not being able to walk that extra distance (0.2 miles) on a day encompassing 10 miles of walking we will have a scooter.
Guess what taking a scooter and just driving it down the sidewalk is better than needing to load it on a boat or monorail. It also is easier now with a stroller as well.
If you were forward thinking then you would understand and see individuals who have issues getting their scooter on and off the boats, busses, skyliner, and monorails. Again its 0.2 miles on a day of you walking 10 miles. Maybe I am strange but I do not have so much self pride in that the second I feel I need a scooter I have zero issues getting one. Heck I could even just rent it and ride it from BLT to MK then park it somewhere and leave it for the day.
By the way I am looking at MK resorts right now to add on 100 points direct and its between BLT and CCV. I like CCV because there is theming (even though its like some resorts my area) and
point charts but the main downside is the boat.