Hello Myriam!
Well now that you are going back into the "work" place I would suggest to at first sprint home at least 4 times a week and then 3 and then 2 each week untill he gets used to it gradually. I know you love Royce more than words can say so I agree that it is better to have him used to spending time alone during the day than trusting a stranger to walk him outside. Perhaps in the future once you settle in your new job and schedule you can meet the right walker that you could feel more comfortable with, but for now you do not need the additional stress...
Big hugs to you!
and sweet Royce
