In my diocese, there are very few permanent deacons. In fact, even the deacons we have were ordained in other dioceses, and have moved here since.
One of the reasons I think this the case is there is no promise of support in general. The expectation is for the deacon to commit time for service (anywhere from 10 to 20 hours a week) yet it is exceedingly unlikely that they would receive any recompense for that time.
Now, no one is likely to ever think they can become wealthy by pursuing Holy Orders. However, using Deacons as free labour means that only those who are retired, semi-retired, or independently wealthy are suitable for this role. These expectations would be unthinkable if the person remained a layperson.
It also has been stated by Bishops in my country that anyone who is interested in becoming a Deacon primarily because they want to serve at the Liturgy should refrain from doing so. The implication is that only those interested primarily in things like prison ministry or street ministries should pursue the Diaconate.
Yet, these are precisely the ministries, in addition to things from RCIA to marriage or sacramental prep, that the clergy emphasizes Lay leadership (at least in my context).
So to sum, there is confusion of what the purpose of the Deacon is because, at least here, they are treated more like an advanced level of the laity who can work for nothing, thus excluding anyone but older rich (and typically white) guys from Holy Orders.
I want to be a Deacon precisely to be more deeply involved in the Liturgy, but also to serve in evangelization and service to the poor. I want the diocese to properly form me for this purpose. I also want some reasonable expectation that my service could in some way help me support my family. And I feel called to the Diaconate in order to develop these issues in catechizing both the clergy and the laity to the crucial role Deacons play in our Latin rite.