You should not. WhatsApp is owned by Facebook, which is a US company governed by US law. That app is connected to identifying metadata on your devices and attached to location data, both of which are shared directly with Facebook. If a male escort insists on using regular SMS texting, WhatsApp, or Direct Messages on Instagram or Twitter, it might be a sign that they aren’t ready to respect the needs of important clients in a real way. Tread carefully. Likewise, if you insist on communicating via channels that don’t offer real security, simply out of convenience, you are potentially endangering yourself and your male escort. Think about secure messengers like Signal and Telegram for your private dealings.