It is quite normal to land at an unmanned airfield with no radio even in the UK. There are more such landing grounds in the UK than there are licensed airfields. 100’s of pilots are trained at such places and the accident rate is low. We have 24 aircraft based at our strip. We use Safty Com and do a lot of flying all over Europe. You just do not need anything other than 600m of grass (probably less) to fly VFR dawn to dusk.
Rod1