D.M.
Hi T.,
We walk a lot and my 2 1/2 year old occasionally wants to be carried as well. I just tell him that he has 2 options, he can go in the stroller - which we always take with us - or he can walk. Being carried is not an option.
I am 6 months pregnant so carrying him is really not an option. If he says 'carry me' then I just repeat the options again.
He will usually choose to walk, but sometimes he'll choose to sit in the stroller and then I know that he's genuinely tired and needs the rest. If he throws a fit and gets grumpy about it then I make the choice for him and put him in the stroller. I don't get angry, I just tell him that if he's not going to make the choice then I am going to make it for him and that he can get out of the stroller and walk when he's ready.
Hope that helps.
D.