Is it easier to extend a Thailand visa for children in Bangkok or Pattaya, and what are the implications of overstaying?

The user is seeking advice on extending their 30-day visa obtained upon arrival in Thailand for themselves and their two children (ages 4 and 11). They inquire about whether it is easier to extend their visa in Bangkok or Pattaya, and if their children's visa needs to be processed as well. Community comments clarify that children under 15 cannot be fined for overstaying, and while it's recommended to extend their visas, they won't face future travel issues due to an overstay stamp. The responses also mention the importance of having onward or return travel booked within the 30 days and suggest that obtaining a tourist e-visa prior to departure may be easier despite the paperwork.