UTXOs are like cash in your wallet.

If you were to pay someone $100 for a service, you wouldn’t give him 100 1 dollar bills (or even worse 10,000 pennies!)

Keeping your UTXOs in the 1 million to 10 million Sats per is ideal, imo.

This means in the future, you won’t have a bunch of “dust” in your wallet. Will make it easier to avoid huge fees in a hyperbitcoinzed world.

Hope that helps!