The person who no longer drives still deserves invitations that include a way to arrive.

Losing the ability to drive removes far more than transport. Invitations quietly stop, not out of unkindness but because people assume the answer will be no, and the person then experiences a shrinking social life as evidence that they have become a burden. Nobody says any of this out loud. The gap is usually logistics rather than welcome.

When you invite someone who cannot drive, bring the transport with the invitation: I will collect you at six, or here is who passes your road. Make it ordinary rather than a favour. And keep asking, because the asking is itself part of what is offered.