I like information that allows me to make better decisions. If you’re a dude and haven’t done any fertility testing, it’s something I’d recommend. Most guys have everything working properly and if there is a problem, many are treatable. Testing is a non-invasive process (I won’t go into details but you can imagine). Even if you don’t anticipate having kids for many years down the road, knowing where you stand can help you (with or without a partner) manage timelines, conversations and options. There are home testing kits (where you mail to a lab) or plenty of local facilities. Google or ask your general physician.