People much older than yourself, but not likely to be found on this forum, have less of a tolerance for coasters and rides than you. They're after a wholesome day out, a whole package, not all of it spent inside queues.
@rob666 will happily regale you with tales of lapping Corkscrew, whilst his mother had tea in the Swiss Cottage.
Many other parks also have full restaurants within the park, especially on the continent where mealtimes are sacred and extended affairs.
A true family theme park caters for (and entertains) everyone, the whole family, not just people who want to go on rides.
They cater for people who like to go on rides!?