I would strongly advise against working at Tesco. Especially during these current times. I have been a customer assistant with them for 2 years and Covid has been an awful experience. Customers screaming, swearing, and assaulting you daily are just some things you'll have to look forward to if you start working for Tesco. Oh, and management don't care about you whatsoever. They'll squeeze as much work as they possibly can from you, with little regard to your physical/mental wellbeing. Your colleagues will b*tch and gossip about you behind your back. You'll finish a shift feeling deflated and depressed, feeling that you aren't actually achieving anything with your life. And you have to do it all over again the next day.
So if you want to feel like a replaceable, unimportant clog in a giant capitalist company and be burnt-out by manipulative managers, then by all means get a job at Tesco. But you're basically signing away your soul.