One of the things I love about doing yoga is that I can see my progress. You can do this with any workout actually, but I am usually more of a wow, I did that, with yoga than other workouts.
The body is as flexible as it’s going to be until you work it with the moves and stretches you need to in order to increase flexibility.
The great thing about yoga is you can do it no matter how flexible or wobbly you are if you take it slow and keep doing it. Don’t try it and then just stop because it’s hard for you. If you keep going one day you’ll realize the hard parts aren’t so hard anymore.