When I Did my first two Caminos it was never heard that you didn't carry your own Moncilla. people actually rebuked you, now all is different ad even have done it once.
Oh in Spring 2002, even thinking taxi-backpack meant a frown of great judgment was visited upon one: "This is not the pilgrim Way! Your Camino will not count unless you walk every inch and suffer!"
I did not walk every inch, I had one taxi transfer, I received my ComposteIa, I swore I would never, ever do this again ... I eturned in 2012 and 2019 and opted several times for taxi backpack.
However, I am committing to an Autumn 2021 (we shall see!) and to a scrupulous review of every ounce I pack. I am opting for Gossamer Gear as Osprey has, for me, left the building. The actual act of carrying one's carefully considered needful possessions for a well marked, well provisioned pilgrimage of several hundred miles across France/Spain/Portugal -- without the need for cooking utensils, without having to pitch a tent in the woods, wihtout having to start a fire in the rain to cook a meal, without the weight of a bear canister, and, depending on your choice of Way, to-die-for delicious hot coffee every couple of hours -- is not a big ask.
I at 76 and in this moment, my intention is to carry it all with me, neither as an act of penance nor one of suffering. I am choosing a thoughtful awareness of my need based on three previous Caminos, the diligent preparation of fitness to carry my pack some hundreds of miles and the gratitude that it and all within it serve me perfectly.