Kkosyong Donkkaseu is marked as not particularly child-friendly, and most family amenities are unconfirmed.

• Child-friendly level rated 0 (lowest) in the source data
• Stroller access, highchairs, and lactation room: not specified
• Parking available on-site
• Hours: 11:00–19:00 daily, with a 16:00–17:00 break
• Open year-round (no regular closing day)
• Small hanok-style space; cash-only per the summary

Based on experience_attributes.child_friendly_level (0), operating.open_hours_raw, operating.closed_days_raw, operating.parking_available, and short_summary_ko. accessibility.stroller_access, accessibility.lactation_room, and accessibility.highchair_available are all null, so those points are unverified.

Only Korean-language service is confirmed; no English, Japanese, or Chinese support is documented.

• Korean-language service confirmed
• No English-language support listed
• No Japanese-language support listed
• No Chinese-language support listed
• Multilingual signage: not indicated
• Translated menu: not indicated

Based on language_support fields (korean=true; english/japanese/chinese/multilingual_signage/translation_menu_available all null). Accessibility guide fields (audio_guide, sign_language_guide, etc.) are also null, so no audio or sign-language assistance is documented.

Cash only — credit cards are not accepted, so bring Korean won.

• Payment is cash only (Korean won).
• Credit cards are not accepted.
• Foreign cards cannot be used since no card payment is supported.
• Note: even drinking water is sold separately, so budget a little extra cash.
• Prices are described as very low — reportedly cheaper than a taxi base fare.

Based on short_summary_ko, which explicitly states cash-only operation. The structured fields commerce.card_payment, commerce.foreign_card_payment, and commerce.cash_only are all null, so the answer relies on the narrative summary rather than dedicated payment flags.