Not mentioned here yet, as this should be a no-brainer to most people, but if you're American and it's a boy: don't start his life by cutting of a perfectly good piece of penis (i.e., circumcision). That's his call, optionally (but probably not, rare medical conditions excepted) later in life. Don't do it just because the cornflakes guy said so. If you're going to do that anyway because of religion you won't be convi…
Didn't realize circumcision was not at all prominent in the UK and Europe until I married my British wife.
Also, there's a huge amount of cognitive dissonance in Americans when it comes to circumcision, so be prepared for backlash should you not circumcise your son.
Netflix even has a documentary on the topic worth watching: 2018 American Circumcision