I would go to parent talks and have a look round. Sometimes parents are too keen and have had to be asked to leave prospective student talks because not all the prospective students can get into the room. (I am looking at Exeter parents!) So don’t be over invested
Excellent advice!
It has only recently been usual for parents to attend with intending applicants. And sometimes we (academic staff) wish they would stand back just a bit. I get very tired of talking to an intending applicant whose eager parent keeps speaking for her: it's a jugging act to stay polite to the parent, but focus on the intending applicant.
So please remember it's your DC's degree, not yours.
We also put on a lot of events for parents - this costs us resources (money, time, space). Please understand that some talks are for applicants, and we have to ensure that applicants (ie your DCs) can all get into the room before we let those accompanying them in. And please try to stay polite to the staff asking you politely to step back (I have had angry parents in my face - at a very "naice" university. Not good).
Also if you do attend subject talks, it's not a good look to try to catch out the lecturer. We are usually giving up a Saturday - unpaid. It actually can cost us in extra childcare, travel, food etc, none of which is reimbursed. I do not respect the showing-off parent trying to make out that I'm either a) selling snake oil; or b) don't really know what I'm talking about; or c) am not up to teaching their genius DC.
And yes, I've had all those said to me, by parents.
What can be useful is the parent as silent note-taker, or sounding board. But it is your DC's degree, so let them talk & ask the questions! Please.