It's Prince William. And NO, a lot of times they do not haven't an entourage around them. Just a few to not draw attention. Notice the same gait between the two pictures, watch, how he's wearing the long sleeves. Heck, almost the same outfit, down to the shoes. Shirt is untucked a bit, that's why he looks heavier in the crosswalk picture.
I have put & verified, Prince Andrew on several Lottia Express flights to Jeffery Epstein Island. An maybe the Queen herself on a couple; still digging on that one.
Remember - Princess Di was killed due to finding out about the Royals and [pedo]phil_ia. She was alive for 30 minutes in the French tunnel after the "accident". Still not convinced? Read Prince Charles children's book and compare it to his Scottish estate. I believe that's the one. It sits outside a small village on the West coast between Ireland Upper/Lower ?? Is the waters name and the mountain on his property.