Switching Lot Types

You can add a bar to restaurant lots and it will summon a bartender. With restaurants you need to keep in mind that any table will be considered as restaurant table, so if you plan to also add a bar, either don't add dining tables to it, or build it in such a way that waiters can access it easily. For clothes shopping experience you can use the clothes rack that came with Highschool pack that goes with bubble tea shops. Sims can shop from it regardless of which lot type you place it on. You can also set up a fast food type restaurant using community space lot type and University cafeteria. You can also add sales table and painting sales boards, and the highschool clothing rack, and maybe another food stand as well.