Deck softening

Hi all. It's been another great sailing season here on Long Island.

My 1984 boats' deck has just started to show signs of softening in the rear starboard side of the cockpit area. I am not feeling the same softening (yet) on the entire port side or the forward area of the starboard side. The rest of the boat seems fine. I am assuming this would be considered normal wear for a boat of this age, in the seating area.

So my question is what should I do at this point? Must this be corrected asap?I would think this area will continue to soften. I know nothing about boat repair so I would take it to an excellent local shop for any work to be done.

I would appreciate any thoughts on how to proceed would be appreciated.

I only sail recreationally in a harbor area.

Thank you for the replies.

So I am willing to move on as you both suggest, however I am wonderinif what is actually the deck structure failing? What is causing this?

I had thought that deck softening was possibly caused by water in the hull? My boat is perfectly dry and never takes on water. Just curious....