Yep, and with pictographic writing systems it's a lot more common than latin... but even here we have X Æ A-12 Musk, and Prince's name symbol. Heck, my initial

Yep, and with pictographic writing systems it's a lot more common than latin... but even here we have X Æ A-12 Musk, and Prince's name symbol. Heck, my initials are totally non-standard.