Immigration is slow for skilled workers in fields with high demand. For someone who is “studying” and has no skills, it would take years to get a work visa legally, if even possible at all. I agree that you will probably never see this man in your house, and are more at risk of your mom sending money to a scammer who disappears once he collects all he can.

In the event that this legitimately progresses further than what everyone else’s advice covers, then you may need to get child protective services involved if any of your siblings are younger than you. Bringing a non-resident into your country, and potentially boarding them in a shared room with minor children? CPS is not going to look at that in a positive light. Even if it is legal for her to help this person in some capacity, CPS might spook your mom back to her senses before it can get to that point.

Yes, your mom has gone mad.

Then she told me that I’m the only one causing problems about this, and my siblings and father have no objections.

Maybe suggest that one of those without a problem should be volunteered to support this guy and invite him into their bedroom.

Otherwise I don’t know what to tell you. Trying to help people is extremely hard, extremely draining. You absolutely have to have boundaries when you’re helping people.

So the right thing here, while you have that healthy sense of the wrongness of this arrangement, is to stick to your guns.

Your mother should not be volunteering you for charity. Nobody has the right to volunteer anyone else’s resources for charity. So if you don’t like the guy or feel personally inclined to help him, don’t.

That kind of help only helps when it’s genuine. People volunteering others for this kind of thing leads to burnout.

It’s okay to give. Just not when it feels wrong to you. That means there’s some resource of your own that, even if you aren’t consciously aware of, will get depleted by doing the help.

Your mom is what we call a sucker

I had a similar situation except I was the dude (but 30 at the time) and I banged the crap outta my version of your mom for a week straight when I went to visit her.