Yes
You will have to check on that.
I've never been to SBC or ATT Park before
If you want to keep your child in a seat then obviously you have to pay for a separate ticket, except if it's under 24 months and keep in your lap
Infant Ticket Requirements All guests entering AT&T Park must have a ticket, except for children 24 months and younger who must sit on the lap of an accompanying adult.
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