Family Fund charity has grants available for families raising a disabled or seriously ill young adult aged 18-24, on a low income. Grants include digital devices, sports equipment, education materials, musical instruments, and more.
www.familyfund.org.uk/grants/schemes/your-opportunity
Apologies - posted before I'd added the Alt Text, which is: Featuring the Family Fund logo in the top right, this image focuses on a young woman with additional needs, wearing headphones and a yellow cardigan, playing a keyboard. To her right is an older woman, smiling as she supports the young woman's playing, also wearing headphones.