Minimalist Vintage T-Shirt Design

1080x1080 square T-shirt graphic, solid #D3D3D3 background, warm cream ink only, extremely minimal text-driven design inspired by understated vintage novelty tees. Set “my grandkid squats” and “so I don't have to” in relaxed lowercase typewriter-style lettering, centered with generous line spacing. Make the parenthetical “(but my knees hurt anyway)” slightly smaller beneath the main phrase. Add one tiny minimalist catcher-mask line icon below the text, no larger than a punctuation-sized visual accent. Plenty of negative space, intentionally simple and dry-humored presentation, subtle aged ink texture, flat vector style. No additional illustrations, baseballs, bats, gradients, shadows, borders, or extra text.