I will just focus on your first example. The students will represent a corrupt sample. Asking in a classroom of young people that covet acceptance and open mindedness "would you be okay with __ in the future" is one thing. Whether they actually would is a whole different thing. Firstly, they will be older, wiser, more worrisome, and more protective. Age skews conservative historically, though I have read some articles about Millenials bucking that trend, I am not buying it. You get older and you cling to what has worked, or at least what has grown comfortable. And any mention of stray from that model for you or your loved ones will slowly begin to spark increasing anxiety in you.

Second, they are not actually being faced with the situation. If a day comes when it is becoming trendy to actually bond and marry Androids, there will surely be division about it. Right now there is almost zero societal pressure against an issue we will likely never face in our lifetime. So it would be very easy to reason toward the affirmative. Like all things though, the public discourse will affect peoples willingness to accept things, much like it often represents the only reason we tend to hesitate and downright oppose change in our current day.

What would need to happen first is the recognition of Androids as sentient beings, and as persons. Otherwise it is sort of a hollow marriage without the implications we are likely alluding to. Though I do think people can marry objects, I seem to remember stories about people marrying (and even consummating) abandoned theme park rides out of some fetish. I mean that's a bit odd. I could see a shiny new Waterslide or something, but a derelict Merry-Go-Round..? (judging).

I think some Japanese have married robots, and even digital artificial personalities (AI bots & E-girls). Both of these examples I listed became notable obviously, but only because of their novelty and shock value. And they sort of leave you with a sense of charm and wholesome satisfaction for those individuals, they love what they love... It is a whole different story though as mentioned once it is a real pattern in society. That is when fear and hatred can form, or even practical opposition. So it is almost impossible to predict, other than that there will be friction.