You could technically do these online without breaking the lockdown.

That's a good point. The bigger churches have a lot of cameras watching every angle of the room and it connects to their video conferencing systems.

https://opsolder.nl/en/museum-our-lord-in-the-attic/ here is one you can visit as it's now a museum. Not literally underground however.

One of the leading causes in covid conditions worsening is stress. The others can be summed up as metabolic syndrome. How we can have vaccinations and still bar people from their intimate needs is beyond me.