My 17 year old son is saying he's not going to apply to any universities

My 17 year old son graduates in May. He was planning to start applying to colleges in the spring. He already got pretty good SAT scores and plays Hockey. Was treasure for student counsel. He has many good things to put on his college application and today he told me he's not applying to any universities and is just going to go to the local community college. And that's fine if it's his choice but he's not going because his brother asked him to stay. My 14 year old son told him he didn't want him to go 2 nights ago when they were talking. My 14 year old was the victim of a crime and we had recently had court and luckily nothing is going to trial. The man is taking a plea deal. He's been sleeping in the bed with my 17 year old because he's been having nightmares. He asked him about him leaving to college and he said that's not until next year. He told him he didn't want him to go. I told my oldest that his brother we will be ok. He has support. He's in therapy. He's going to be fine and if he wants to go to a university he should. I don't want him holding himself back. But he said he's just gonna stay and take classes at the community college. His dad thinks that's smarter because it's cheaper to go to community college the first two years and then go to university. If it's truly what he wants that's fine. I just don't want him doing it because my son asked him to. My son will be fine. My oldest son has a heart of gold. I just don't want him to put his life on hold for us.

Edit: Just to make it clear I'm not shaming community college. I went and never finished but that's because I got pregnant and just never went back. He's smart and could probably get a scholarship. But it is his choice. I just wanted it to only be his choice. Not because my son asked him not to leave.

@Allison I think you are completely misremembering my post about the bed sharing. I made the post because my BOYFRIEND found it weird. I even said in my post that I don't have an issue. I'm not even with that boyfriend anymore. We broke up because he was just causing more issues with my kids. And my younger one is in therapy for the trauma.