> try to encourage standing for those who can e.g. by having high-top tables, or taking away chairs from around tables

Why do people feel it's their role to take away choice if someone wants (or need) to sit down?

I don't buy the attempt at inclusive language either because it's nobody's business to determine "for those who can".

Have chairs available for those who need them rather then forcing them make themselves known by asking the host for a chair or trying to drag one in from another room.

As a bonus you won't have to lug chairs out of the room only to put them back later.