One regret: why didn't I start sooner?
Last year I picked up a SUP board from Decathlon during my remote work weeks in Algarve, in Portugal. I'm from here, but have since moved to another EU country.
I've been taking my board down to the beach every day or so, sea conditions allowing, and I have been having a blast. I don't really do much SUP'ing, mostly on my knees or sitting down, go further from the beach and just breathe, either sitting or laying down, while listening to the sea noises. Even just that has been amazing and worthwhile!
Now I've been trying to stand on my board but either get too wobbly and fall, or it seems my board bends a little too much as if it wasn't fully filled (I used an electric pump to get it to 15 PSI as the manufacturer recommends not going higher than that). I'm sure I'll get there eventually.
I only regret not having started years ago. This has been a blast.