Hello rikki59,
If the Directions option is not showing when you pull up an address in Maps, you'll want to make sure that you're currently located in and the device is currently set to a region where the Directions function is available.
iOS Feature Availability - Maps: Directions
You can check your devices region settings in Settings > General > Language & Region.
You'll also want to make sure you've covered the basics like restarting the device and making sure it's up to date.
Restart your iPhone
Update your iPhone or iPad
You can use these steps to get directions in the Maps app:
1. Do one of the following:
• Tap a destination (for example, a landmark on a map or a spot that you marked with a pin).
• Touch and hold anywhere on the map.
• Tap the search field, begin typing, then tap a result.
2. Tap the directions button on the place card.
After you tap the directions button, you can choose a different mode of travel, a different starting point, and other options. See Select other route options in Maps on iPhone.
3. Tap Go for the route you want.
Use Siri, Maps, and the Maps widget to get directions on iPhone
Cheers!