In my country, the age group that took up the most hospital beds was the 45 - 64 year olds. [1] This is probably true for your country too.

The vaccine will prevent you from being hospitalised and burdening the healthcare system. This will allow cancer diagnosis/treatments, surgery and other life saving procedures to go ahead for other people.

[1] https://www.travellingtabby.com/scotland-coronavirus-tracker...

Scroll to “ New Hospital Admissions by Age Group” and change to “In Total”.