We will be spending one night in Tlaquepaque in May. We inquired with two B&B's (Casa Telquepaque and Casa Rosa Morada). Both had available rooms that meet our needs. However, each wanted us to email a credit card number to reserve our room. No secure website or PayPal deposit method.
In the USA, I wouldn't email a credit card number to reserve the Holiday Inn three miles from my house.
Am I being overly cautious?