Answer
Can you customize your character in GTA 6?
The two GTA 6 leads are set characters, not a blank avatar. You play Lucia and Jason, so story customization is about their look: Rockstar’s edition copy names outfits and hairstyles for both, a clothing store, a salon and a tattoo parlor with over 50 signature tattoos. It has not detailed a create-a-character system.
This is the opposite of GTA Online, where you build your own criminal from a menu. GTA 6 single-player casts you as Lucia Caminos and Jason Duval, two written protagonists Rockstar has given official bios, so their identity is fixed the way Franklin, Michael and Trevor were in GTA 5. You dress them; you do not design them.
Wardrobe and appearance are confirmed to matter. Rockstar’s Vintage Vice City Pack, a pre-order bonus, includes "decadent outfits and hairstyles for both Jason and Lucia". The Ultimate Edition adds a clothing store (Stock 305), a salon (Sara’s Unisex Salon) and the Electric Fang Tattoo Parlor, whose copy promises over 50 signature tattoos for both leads, and Rockstar marks each of those shops as open only with the Ultimate Edition, so what the Standard edition’s world offers is not detailed. An Extended Look also shows the leads changing masks, hats and clothes to shake a police chase. Rockstar has published no menus, so how deep any clothing or style system goes is unknown.
Deep character creation, sliders for face, body and style, is a GTA Online tradition. Rockstar has announced no GTA 6 online mode, so treat the depth of any customization system as unconfirmed.
Can you customize your character in GTA 6?
The two GTA 6 leads are set characters, not a blank avatar. You play Lucia and Jason, so story customization is about their look: Rockstar’s edition copy names outfits and hairstyles for both, a clothing store, a salon and a tattoo parlor with over 50 signature tattoos. It has not detailed a create-a-character system.