My pet peeve: sites that require all-numeric PINs when logging in online. Numbers make sense when you're punching buttons on a phone or ATM, but elsewhere, why

My pet peeve: sites that require all-numeric PINs when logging in online. Numbers make sense when you're punching buttons on a phone or ATM, but elsewhere, why limit my entropy to 10 possible characters instead of at least 62? And there's a special place in hell for sites that require entering numeric PINs by clicking on a "keypad" of randomly generated button locations.