At what age would you expect children to take responsibility for their own medications?

[SixImpossible]

At what age would you expect your dc to take over responsibility for their medication in the following situations:

A dc who has to take a regular medication every day, say a tablet at breakfast time.

A dc away from home, on a residential, say, carrying motion sickness tablets and/or paracetamol and/or anti-histamines.

When my sister (10) has medication that has to be taken to school so she can take it everyday, she reminds the teachers when it's due throughout the day.

Regular medication - somewhere between the ages of 8 and 14 depending on how reliable the DC is and the consequences if a dose is missed. DD2 is 9 and could probably manage this if she had to.

Away from home - not before secondary age. Before that the school or whatever will probably require all medicines to be handed in anyway.

DD1 is generally very forgetful. DD1 has taken pain killers to school since she started periods (age ~12). Certainly now at nearly 15 she would look after any medicines herself on a residential. However, she is on the pill to help manage periods, but it not 100% on remembering to take it in the mornings.