For establishments that don't have company-issued hardware, it's difficult to standardize on e.g. Outlook calendar, Apple calendar, etc. Text messages and email

For establishments that don't have company-issued hardware, it's difficult to standardize on e.g. Outlook calendar, Apple calendar, etc. Text messages and email are easy to standardize on, without putting too much burden of expectation on the employee to have high-end modern hardware capable of running the scheduling software client.