There's never anything I can eat at restaurants, isn't eating out impossible?
Short answer: No. Most of the world's great cuisines are plant-based by default, and nearly every UK chain now lists vegan mains outright. The gap is habit, not menu.
Just the ones named in this answer, Wetherspoons, Wagamama, Pizza Express, Zizzi, Nando's, Pret, Greggs, Yo! Sushi. The labelling exists because demand made it worth printing.
The objection
“Whenever I go out, there’s nothing for me. I’d be sat there with a side salad while everyone else eats properly.”
The answer
The side-salad fear is real, but it belongs to about 2010. The menus moved on.
Start with the cuisines that were never built around meat in the first place. Indian (dal, chana masala, sag aloo), Middle Eastern (falafel, hummus, tabbouleh), Thai and Vietnamese (curries, noodle bowls), Italian (pasta pomodoro, marinara, bruschetta), Ethiopian, Lebanese: vast stretches of these menus are accidentally vegan. No favour from the kitchen required, you’re ordering the dish exactly as written.
Then the chains, where “nothing for me” really falls apart. Wetherspoons lists vegan curries, chilli, burgers and pizzas. Wagamama, Pizza Express, Zizzi, Nando’s, Pret, Greggs and Yo! Sushi all carry clearly-labelled vegan mains as standard now, printed on the menu rather than tucked away as a grudging extra (PETA UK; The Vegan Society). That labelling exists because demand made it worth printing.
What’s actually changed is the work you do beforehand. A quick glance at a menu online, or a one-line message to the restaurant, removes the problem entirely. Omnivores do this too. They just call it “checking if it’s any good.”
So the realistic version is much smaller than the fear. Occasionally a specific place is awkward, and you order two starters or eat first. That’s a mild inconvenience a few times a year, a long way from “never anything I can eat.” The food is already on the menu. You only have to look.