How do give a player a "StarterCharacter" but not right when they spawn and animate it?

So like when you put a StarterCharacter into StarterPlayer it spawns the players with that character, but I want to make the player that character after something has happened. I assume I would need to weld every part of that character to the player, but how would I apply animations for the character's parts to move? Since if I delete the player's existing body parts the player will die, and if I just turn them invisible, then he/she will still have the default animations and the parts from the character will not be animated... I need help.