Thank you so much for your suggestion.
The current 2-hour rule is meant to avoid people refunding the game(s) through Steam and creating unnecessary accounts. It also acts as a safeguard to make sure players are at least able to understand the game's basics and have completed a few jobs before going online.
Many players discover TruckersMP through video platforms or friends. Often, they haven't played Euro Truck Simulator 2 or American Truck Simulator before. Increasing the minimum playtime to a high number like 20 or 50 hours, many players won't even bother getting the game as they are not able to join TruckersMP until playing for weeks. This hinders casual players but also friends from playing together.
I believe increasing the minimum playtime requirement will have more disadvantages than advantages. Therefore, we will not accept this suggestion.
Thanks again for everyone's contributions to this discussion!