There are private halls over the Selly Oak/ Bournville direction, which can be booked by students direct, rather than the room having to be allocated via their own university, but they tend to be rather pricy and, at this point in the admissions cycle, possibly fully booked.
Travelling alone, I used the Aston Conference hotel as a base last year when I was visiting DS1, who lives in Birmingham, and travelling to an event in Staffordshire, and quite happily walked to and from New Street, visited a local pub etc. When I'd been around that area previously, it had been for an evening out with DS1 and his partner, and with DD, who was at UoB and lived in Selly Oak at the time. That time, I stayed in Edgbaston and had no qualms about travelling there and back by bus (we'd decided on the Gosta Green pub because one of DD's housemates worked there, but tbh although the food was quite nice that time, by the time I went again, I felt it had gone downhill rather
. Btw, theres a really nice little Greek place in Bournville, opposite - I think - a facility for international students at BCU.).
@4Laurie thousands of students (not to mention well over a million permanent residents) live in or commute into the city quite happily, but if your DS's concern for his personal safety is so severe that it is likely to impinge on his ability to live a normal life, then are there any alternatives available to him through Clearing, in a location where he would feel safer?