Maxperson
Morkus from Orkus
It happens all the time. Players don't consider everything, or don't know everything, or whatever other reason. It happens. Fairly often.Why would the player propose something that isn’t logical?
Me: "It was red."It seems like your position is that if the player’s opinion and the DM’s opinion conflict, the DM’s opinion should prevail regardless of which is more logical.
You: "It seems like you're saying blue."

It depends. Is it one of those trees with smooth bark and branches that don't start for 15 or 20 feet? Or one with rough bark and branches that start near the base of the tree trunk? Tree climbing is not equal. I know because I LOVED climbing trees as a kid and some of them were really easy and some I couldn't climb if I was going to get a million dollars for success.Suppose the party is in a normal forest. They are relatively low-level. The fighter (trained Athletics) chooses to climb a tree to get a better vantage point. The DM says it DC 20. The fighter’s player, an avid climber (while the DM isn’t) points out that climbing trees is pretty easy for a trained climber, and points out that since the purpose of climbing is just to get a better vantage point, he can just choose a different tree to climb.
Your position isn’t that the most logical position prevails. It’s that the DM’s position prevails, by dint of being DM.