Starting late still beats never starting. The pool doesn’t check your birth certificate.

Age sets what you will probably reach, not whether the thing is available to you. Water behaves the same way for a beginner of thirty as for one of eight, and the skill is acquired by the same means. The comparison with people who started early is the only part of this that actually stops anybody.

Pick the thing you think you are too late for and find out what the beginner version costs. One session, one class, one evening. Decide after you have tried it rather than after you have imagined it.