Thanks for replying.

Access restrictions on OSM means legal/permitted access. Please see https://wiki.openstreetmap.org/wiki/Key:access . Notably, this never means subjective reasons like solely religious or spiritual that you mention. These must be based on verifiable criteria, such as laws, municipality regulations, traffic signs, property usage rules or something like that. See also https://wiki.openstreetmap.org/wiki/Verifiability .

The value `customers` means just that - a customer of a business, such as someone shopping, paying for service, buying a ticket, etc. and is thus gaining access to the location. Normally, anyone can become a customer. See https://wiki.openstreetmap.org/wiki/Tag:access%3Dcustomers . This would almost never apply to a location like a cemetery. If the cemetery is gated and permission is only granted to individuals, then it is `private`. If the cemetery is open, then it's public access.

Sniķeru kapi is owned by the Sigulda municipality (as per "Par kapsētu uzturēšanu un lietošanu Siguldas novadā" law), so it is almost certainly public unless there is something special here (which is why I asked to be sure).

Regarding area tags, they are part of the map. Any values you place on ways also indirectly impact surrounding features. They must match or they don't make sense (for example, public parking for a private cemetery).

Let me know if I can clarify anything else.