Hey Neco, glad to see you here!
I get your complain and I know, for it has been a hard choice to make: I wanted to avoid the circumnstance in which the player had to crouch and jump immediately after, with the risk to fall down instead of jumping. Also, just like Lara's home in Tomb Raider PSX the game provides you an optional tutorial area that explains every important gameplay mechanic (this one too, of course). I'm glad that in the end you got out on your own, but I'm sorry nonetheless!
That said, it's time to watch your playthrough ♪