You can take once-in-a-lifetime experiences in your 20s and still save for retirement. I went to Burning Man and traveled to Amsterdam in my 20s and that didn't impact my savings.
I should point out that it's cheaper to travel when young: Back then I stayed in a tent in the desert and in a friend's room near Amsterdam. If I did the same trip today, I'd have my family in tow, and would need more comfortable accommodations.
I should also point out that startup equity is not retirement savings. Selling 10% of your equity, investing most of it, and then doing something that you won't be able to do when you're old is a very wise and mature decision.
I should point out that it's cheaper to travel when young: Back then I stayed in a tent in the desert and in a friend's room near Amsterdam. If I did the same trip today, I'd have my family in tow, and would need more comfortable accommodations.
I should also point out that startup equity is not retirement savings. Selling 10% of your equity, investing most of it, and then doing something that you won't be able to do when you're old is a very wise and mature decision.