There are cafés in “natural trail” places. Okay might be a little tea room kind of place that might not be so keen on muddy riders 😉
Plenty of pubs though, or little shops. Surrey Hills has village shops, pubs or the thing up at the tower in Leith. Argue if you like if SH is technically trail centre or “natural”*, given how busy the place is and the facilities that have sprung up due to bikes. Actually, Box Hill has a café, but it’s not a trail centre, except maybe for roadies 😛
* – most “natural” singletrack has had trail pixie work anyway even if you don’t notice. Bridleways and the like are man made. 😉