If you're even vaguely ambivalent about having kids or founding a startup, don't do it!

You need to want to do it even if you had to crawl through broken glass.

Otherwise you'll find yourself questioning or even resenting your decision when you run into hardships.

But if you want to do it no matter what, then it can be the most meaningful experience of your life.

Precisely because you are so committed so you must learn and grow from the hardships that are inevitably a part of it.