Age restriction on teams?

Question

My platform is a free online tool for sports clubs to administrate their organizations. I am currently struggling with some age restriction basics for teams and I would appreciate your input and help!

A user sets a minimum age to 18 on a team, but the club's rules state that a member can be 17 and join as long as he/she are 18 at a given date during the team's duration. E.g. I have a basket team for youngsters between 18 and 23. It runs from January to July. To join, the members have to be 18 by the end of June.

The issue is related to the creation part of the process. The issue I'm having is on the admins part. How to intuitively make a set of input boxes etc. for the admin to setup the age boundaries for his/her club. How would the creation setup look for this? Or would you approach this differently? A minimum and maximum age with the option of selecting when the minimum age restriction should be met? Something totally different?

I just want to explore some options and hear your opinions on the matter!

Thank you!

Answer 1

Edit after your comment

Why not simply create a dropdown on the admin side like:

Minimum age required:

[dropdown with ages between x and y]

The participant must have this age by the end time of the club

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Original answer

I would like to add something to Mike's answer, actually improve something :

..you show them only the teams where the latest allowable birth date is later or equal to their birth date, e.g.

This isn't that great of an experience, think about this: two friends, one 19 and one 17 talk about it, the 19 year old invites his friend to join telling him where to find the team and all the details but since he's 17 and he doesn't turn 18 by the time it ends, he can't find it and reports a bug to the administrator or thinks there's something wrong on his side.

You should show all the teams but allow them to join only those that meet the rules. For the others you can remove the join button and display a message like "You cannot join this team due to age restrictions" or something like that.

Answer 2

I'd approach this issue from the other side, namely knowing the duration of the team and its age restriction you can calculate the latest birth date of the participants of this team, e.g.

The team A runs from January till the end of June 2018 and you must be 18 not later than on June 30th, it means your birth date must be June 30th, 2000 or earlier.

The team B runs from February till the end of August 2018 and you must be 18 not later than on August 31st, it means your birth date must be August 31st, 2000 or earlier.

You request the players (participants) to register with they birth date and once they want to see which teams they may join, you show them only the teams where the latest allowable birth date is later or equal to their birth date, e.g.

Participant 1 was born on February 11th, 2000, they may join both A and B teams.

Participant 2 was born on July 1st, 2000, they may join only team B, as requirement for team A (June 30th, 2000) is earlier his birth date.

I hope it is clear to you.

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Edit after OP's information addition

If I understand you correctly, you are looking for some sort of "Create team" dialog, what about the following:

^{download bmml source – Wireframes created with Balsamiq Mockups}

Since the club rules are fixed, the birth dates of the participants can be calculated.
I assume that you may enter the lower age limit during the duration of the team, but you must stay below the upper age limit during the duration of the team.

Therefore, the yellow tooltip field changes its content when the age limits change and the start and end dates of the team change.

Is this what you are looking for?