There is no fixed age rule
What works depends on the child, activity and place. A familiar living room may feel different from a new hall. Ask parents what helps their child settle.
Set a general arrangement while allowing individual agreements. Parents might usually return at collection time, while one stays longer. You do not need to explain that exception to the whole group.
Three invitation options
You are welcome to stay briefly at drop-off. The programme starts at [time] and collection is at [time]. Please message me if you would like to discuss another arrangement.
Parents are welcome to stay. Please tell us how many adults are coming so we can plan for you.
[Names] will supervise the party. Drop-off is at [time], collection at [time]. You can reach us on [number]. Please discuss anything we need to know in advance.
Choose wording that matches your real plan rather than surprising people at the door.
Staying does not automatically mean helping
A parent staying for their own child is not automatically supervising the group. Explicitly agree who helps with reception, refreshments and collection. Share the programme and keep one contact person so families receive consistent answers.
Make arrival comfortable
Welcome children, show them where belongings go and offer a simple starting activity, such as drawing a card. Allow a calm goodbye according to your agreement. A child who wants to watch can stay at the side without being called into the centre. Keep the parent’s contact details available if settling in is difficult.
At a venue or booked activity
Check how many adults can stay and where they can sit. Ask what the provider supervises and what remains with you as organiser. A DJ leads the music programme; you remain available for your guests.
Discuss a calm start, parental presence or a particular break with Kinderdisco.nl when arranging a birthday DiscoShow.
Make collection clear
Agree where parents wait, who accompanies children to the exit and whether someone else is collecting. Gather belongings before departure. The home disco timetable helps you fit these moments around the rest of the afternoon.