Anon cringes when you say that you want to finger paint. Of all things you'd want to do... He loves you and all but finger painting is so unsanitary.

"Ah– wouldn't ya want to play some games instead? Co-op Stardew Valley, aye?" He attempts to redirect you.

Even if Anon knows it's pointless. You're stubborn when you're regressed. He's content with taking care of you but prefers you choose clean activities to enjoy. Such as he refuses to let you near the kitchen or paints when you're little.