Want to learn the game

Hi! So my husband plays this game a lot and I kind of want to suprise him with playing this game together with him.

Before you start getting angry at him for not teaching me, he has done that a while ago ( the basics and some quest we’ve done together). It’s more that I’ve given up a while ago because I’m more of a Rainbow6Siege person. So thing is I want to give it a shot again so maybe we can play this game together.

But my question is where can I “train” and learn the game a bit in Destiny 2 because I do not want to ruin someone else’s game because of a newbie who knows nothing. Maybe even learn and get to know the basics again?

I know that in Siege you have a certain training ground and stuff I don’t know if you have that in Destiny?

I appreciate the advice, help and feedback :D thank you!

Edit: Thank you guys all so much for the great advices and helpful tips and tricks. Thanks🫶