Teams within Kintera Gala work differently from Kintera Thons.  Within a Gala you are not really registering a "Team", in the sense of joining together to raise funds.  Teams in Kintera Gala are more for registrants who want to join a table of other people.

When Teams are turned on in Website Features, the registrant will not be prompted about starting a team.  To join a team, a registrant would visit the page of someone who already registered and request to join their team on their personal page.