Maybe, but, I doubt it. Kids have their own sense of reality. Their body parts are literally brand new. Some fatigue might come from spending all their free time playing video games, but, youth is wasted on the young. If you, and this goes back at least 35 years, when my kids were small, but, computers and games were a rarity, they spent there time outdoors riding bikes, playing on swing sets, hide and seek, tag, etc. We first went when my youngest was almost 7 and my oldest had just turned 9. Even though they loved the place, by around 4pm they would start to whine about how tired they were, and that their feet and legs hurt and how they just couldn't go any further. So, my wife and I, who BTW, were really having pain and ache issues would decide to take them back to the hotel for a rest break.
The second, and I do mean the second, we got back to the hotel all of a sudden they had the magical burst of energy and physical capability to whine until we agreed to let them use the pool. When we said OK, it was like a flash of lightning. They were into their bathing suits and at the pool before you could blink twice and would stay massively mobile for hours. Tired? My left elbow!!
Recently, I had the occasion to ask my girls about this. They are currently in their 40's. I asked about how they would have felt if we had gotten strollers for them. They looked at me like I had two heads and said... "We weren't babies". Why would we want to be in a stroller. Hey, I just asked, you will notice you weren't in one, in fact, it never even occurred to us that you should be. Different times, different ways of thinking.