Aging anyone?

So my friend, who is 25 and a Sephora addict, thinks I should start getting anti aging stuff because I am 30 and my skin will start to sag soon. 😂 To clarify, she's my best friend and a total Sephora cosmetics + makeup hoarder. It's so serious that sometimes she even forgets she has stuff and buys them again. 😄 So we had this chat this morning. What do you guys think? Sunblock and moisturizer or actual anti aging care like retinol, chemical peels etc?