My apologies if I brought up something that had been "reiterated time and again", but it hadn't been reiterated time and again in any threads that I've read here, nor have I come across this claim anywhere else. If I somehow missed it in dialogue then mea culpa, however...
From Jammer's Review of "Monster": "Picard's mother being locked away, and indeed everything inside Chateau Picard, feels excessively 18th century. Wouldn't they have a better 24th-century treatment for mental illness than "lock her in a room"?"
From KRAD's S2 overview: "Unfortunately, while the notion has its heart in the right place, none of it really works. For starters, we have no idea
what Yvette Picard’s mental illness
is exactly. And while it’s true that the Picard family was established as being Luddites who eschew modern technology and conveniences in
TNG’s “
Family” (a legacy Picard rejected when he went off to Starfleet Academy), we’re still talking about a future in which mental illness is very rare (viz., the original series’ “
Dagger of the Mind” and “
Whom Gods Destroy,” which take place many decades prior to Picard’s childhood). More to the point, locking someone mentally ill in a bedroom is behavior that would be prosecuted as abuse
now, much less three hundred years from now. The whole thing feels like a nineteenth-century treatise on how hysterical women were dealt with: lock them away for their own good, lest they hang themselves. It’s a story out of 1810 or 1910, not 2310, or even 2022."
So evidently I wasn't the only one who found this dubious.