It’s important to take any chance you can to draw. I have an ultra light little set with me that I bring everywhere, just for that reason.
It’s brought me so much fun and I’ve learned so much from it, I can only recommend it.
You don’t always end up with the best pictures, but it doesn’t matter. It’s a chance to try something you’d normally not draw and it’s a great way of creating a lasting impression of the day.