Is competition among team members healthy?
The ways of working along with technology are changing very frequently nowadays. Team members need to stay on top of the changes. Hence, having a competition among team members is healthy as long as it does not hamper the overall quality of work or team unity.
There are some team members who might not be that social and perhaps don’t like to indulge in competitions and such. You as a team leader must understand that and not force these employees to participate in a competition. If after some time they feel that their colleagues are benefitting from it, they shall automatically start participating in these activities.